WATER-QUALITY MONITORING OF THREE MAJOR …WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO...

WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO THE CHESAPEAKE BAY-

INTERIM DATA REPORT

U.S. GEOLOGICAL SURVEY

Water-Resources Investigations 80-78

Prepared in cooperation with the

U.S. ENVIRONMENTAL PROTECTION AGENCY

CHESAPEAKE BAY PROGRAM

50272 -101

1.__REPORT NO. 2. 3. Recipient's Accession No.REPORT DOCUMENTATION

PAGE

4. Title and Subtitle 5. Report Date

September 1980

WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO THE

CHESAPEAKE BAY--INTERIM DATA REPORT '

7. Author(s) 8. Performing Organization Rept. No.

David J. Lang and David Grason USGS/WRI-80-78

9. Performing Organization Name and Address 10. Project/Task/Work Unit No.

U.S. Geological Survey, Water Resources Division

208 Carroll Building 11. Contract(C) or Grant(G) No.

8600 La Salle Road (C)

Towson, Maryland221204

(G)

12. Sponsoring Organization Name and Address 13. Type of Report & Period Covered

U.S. Geological Survey, Water Resources Division

Interim

208 Carroll Building

8600 La Salle Road 14. Towson, Maryland221204

15. Supplementary Notes

Prepared in cooperation with the U.S. Environmental Agency

Chesapeake Bay Program

16. Abstract (Limit: 200 words)

The U.S. Geological Survey is monitoring the water quality of three major

tributaries to the Chesapeake Bay at their fall lines to obtain estimates of con-

stituent inputs potentially available to the bay. The monitoring sites are:

Susquehanna River at Conowingo, Md.; Potomac River at Washington, D.C.; and James

River at Cartersville, Va.2collected from October 1978 toWater-quality data

April 1980 are presented in tables.2of major ions, nutrient andConcentrations

carbon species, metals, pesticides, suspended sediment, and other selected con-

stituents are presented for a range of flows. The mean, standard deviation,

minimum, maximum, and median values for each constituent were determined by stand-

ard methods and are presented for each sampling station.2Bivariate linear regres-

sions were run for all constituents versus streamflow, specific conductance, and

suspended sediment.2 coefficients of determinationThose relationships exhibiting

(R2) greater than 0.50 are tabulated.

17. Document Analysis_a. Descriptors

*Chesapeake Bay, *Sediment transport, *Sediments, *Water quality, Pesticides,

Nutrients, Basic data collections, Trace elements, Bays, Bottom sediments,

Herbicides, Heavy metals, Insecticides, Potomac River, Rivers, Statistics

b. Identifiers/Open-Ended Terms

James River, Susquehanna River

c. COSATI Field/Group

18. Availability Statement 19. Security Class (This Report) 21. No. of Pages

No restriction on distribution UNCLASSIFIED

20. Security Class (This Page)

66 22. Price

UNCLASSIFIED (See ANSI—Z39.18)_

See Instructions on Reverse OPTIONAL FORM 272 (4-77)

(Formerly NTIS-35) Department of Commerce

WATER-QUALITY MONITORING OF THREE MAJOR

TRIBUTARIES TO THE CHESAPEAKE BAY—

INTERIM DATA REPORT

By David J. Lang and David Grason

U.S. GEOLOGICAL SURVEY

Water-Resources Investigations 80-78

Prepared in cooperation with the

U.S. ENVIRONMENTAL PROTECTION AGENCY

CHESAPEAKE BAY PROGRAM

September 1980

UNITED STATES DEPARTMENT OF THE INTERIOR

CECIL D. ANDRUS, Secretary

GEOLOGICAL SURVEY

H. William Menard, Director

For additional information write to:

U.S. Geological Survey

208 Carroll Building

8600 La Salle Road

Towson, Maryland 21204

CONTENTS

Page

V

Definition of terms A

Conversion of measurement units A

VI

Abstract A1

Introduction A1

Acknowledgment A3

Hydrologic conditions A3

Data collection and presentation A5

Data-collection sites A5

Methods of sample collection and analysis A5

Data presentation A5

References A11

Supplemental data A13

ILLUSTRATION

Page

Figure 1. Map showing location of drainage basins of the A

Susquehanna, Potomac, and James Rivers 2

III

TABLES

Page

Table 1. Monthly precipitation, in inches, at selected

sites from January 1979 to Ma5ch 1980 4A

2. Coefficients of determination (R ) greater

than 0.50 using more than five correlated

data pairs for bivariate linear regressions

of chemical constituents with streamflow,

specific conductance, and suspended

sediment A6

3. Basic statistics of water-quality data for the

Susquehanna River at Conowingo, Md A8


Potomac River at Chain Bridge at

Washington, D.C.A 9


James River at Cartersville, Va. A10

SUPPLEMENTAL DATA

Page

Supplemental Data

A. Water-quality data for Susquehanna River at

Conowingo, Md., from November 1978 to

April 1980 A14

B. Water-quality data for Potomac River at

Chain Bridge at Washington, D.C., from

October 1978 to April 1980 A33

C. Water-quality data for James River at

Cartersville, Va., from October 1978 to

April 1980 A42

D. Pesticide data from the three monitoring

sites from November 1978 to April 1980 A51

E. Suspended-sediment records for the Susquehanna

River at Conowingo, Md., from October 1979

to March 1980 A57

F. Suspended-sediment records for Potomac River

at Chain Bridge at Washington, D.C., from

October 1978 to March 1980 A59

G. Results of analysis of bottom material and

water samples from Susquehanna River below

Conowingo Dam at Conowingo, Md A65

IV

AAAAAA

CONVERSION OF MEASUREMENT UNITS

The following factors may be used to convert the inch-pound units

published in this report to International System (SI) metric units.

Multiply inch-pound unitA To obtain metric unit131A

Length

inch (in.)A25.40Amillimeter (mm)

.0254Ameter (m)

foot (ft)A .3048Ameter (m)

mile (mi)A1.609Akilometer (km)

Area

2 AA 2square mile (mi ) 2.590 square kilometer (km )

Volume

gallon (gal)A3.785Aliter (L)

3

.003785Acubic meter (m )

3 3cubic foot (ft )A.02832Acubic meter (m )

Flow

cubic fot per second 28.32Aliter per second (L/s)

(ft /s)

.02832Acubic meer per second

(m /s)

gallon per minute (gal/min) .06309Aliter per second (L/s)

.00006309Acubic meer per second

(m /s)

Temperature

degree Fahrenheit (°F) -32 x 0.555Adegree Celsius (°C)

V

DEFINITION OF TERMS

Terms related to streamflow and water quality as used in the report

are given below:

Alkalinity is the capacity of a water to neutralize acids. Alkalinity

in water is caused primarily by bicarbonates, carbonates, and hydroxides,

and is expressed as equivalent calcium carbonate, CaCO3.

Chlorophyll a is the primary pigment of all oxygen-evolving photosynthetic organisms and is present in all algae and photosynthetic organisms, except some photosynthetic bacteria (Wetzel, 1975).

Chlorophyll b, although common to higher plants, is found in green

algae and other lower plants. This pigment functions as a light-gathering

pigment in which absorbed light energy is transferred to chlorophyll a for

primary photochemistry (Wetzel, 1975).

3Cubic foot per second (CFS, ft /s) is the rate of streamflow representing a volume of 1 cubic foot passing a given point during 1 second and

is equivalent to 7.48 gallons per second or 448.8 gallons per minute.

Fecal coliform bacteria are bacteria that are present in the intestines or feces of warmblooded animals. Their presence in water is considered to indicate fecal pollution. In the laboratory, they are defined

as all organisms that produce blue colonies within 24 hours when incubated

at 44.5 ±0.2°C on M-FC medium (selective nutrient medium for fecal coliform

growth). Their concentrations are expressed as number of colonies per 100

milliliters (mL) of sample.

Fecal streptococcal bacteria are bacteria that are present in intestines or feces of warmblooded animals. Their presence in water is considered to indicate fecal pollution. They are characterized as gram-

positive, cocci bacteria which are capable of growth in brain-heart infusion broth. In the laboratory, they are defined as all the organisms

which produce red or pink colonies within 48 hours at 35 ± 1.0°C on Menterrococcus medium (nutrient medium for fecal streptocci growth). Their

concentrations are expressed as number of colonies per 100 milliliters of

sample.

Hardness of water is a physical-chemical characteristic that is commonly recognized by the increased quantity of soap required to produce

lather. It is attributable to the presence of alkaline earths (principally

calcium and magnesium) and is expressed as equivalent calcium carbonate,

CaCO

3.

Kjeldahl nitrogen is the sum of free-ammonia and organic nitrogen

compounds that are converted to ammonium sulfate, (NH.) SO , under special

4 2 4

conditions of sample preparation. The sum of all nitrogen in a water

sample is equal to Kjeldahl nitrogen plus nitrite and nitrate nitrogen

concentrations.

VI

Micrograms per gram (JJG/G, pg/g) is a unit expressing the concentration of a chemical element as the mass (micrograms) of the element

sorbed per unit mass (gram) of sediment. One microgram is one one-millionth of a gram.

Micrograms per liter (AWL, pg/L) is a unit expressing the concentration of chemical constituents in solution as mass (micrograms) of the

solute per unit volume (liter) of water. One is equivalent to one milligram per liter.

Milligrams per liter (MG/L, mg/L) is a unit for expressing the concentration of chemical constituents in solution as mass (milligrams) of

the solute per unit volume (liter) of water. One milligram is one one-

thousandth of a gram.

Organic nitrogen includes all nitrogenous organic compounds such as

amino acids, polypeptides, and proteins. It is present naturally in all

surface waters as a result of natural nitrogenous materials and biological

life in the watersheds and streams, but excessive concentrations may indicate contamination from man-induced influences.

Orthophosphate is the most common ionized form of phosphorus in water and the only one derived from natural sources. Orthophosphates comprise the inorganic portion of phosphorous and include the three ionization products of phosphoric acid H2PO4-1 , HPO4 -2 ' and PO -3 in a water body,

4whose relative concentrations are governed by the pH of the water.

Particle-size classification used in this report agrees with recommendations made by the American Geophysical Union Subcommittee on Sediment

Terminology.

The classification is as follows:

ClassificationASize (mm)AMethod of analysis

Clay A Sedimentation.0.00024 - 0.004A

.004ASedimentation.Silt A.062A

.062 Sedimentation or

sieve.

Sand A- 2.0AA

Gravel . . . . 2.0AASieve.- 64.0A

The particle-size distributions given in this report are not necessarily representative of all particles in transport in the stream. Most of

the organic material is removed, and the sample is subjected to mechanical

and chemical dispersion before analysis in distilled water.

VII

Pesticides are chemical compounds used to control undesirable plants

and animals. Major categories of pesticides include insecticides, miticides, fungicides, herbicides, and rodenticides. Insecticides and herbicides, which control insects and plants, respectively, are the two categories presented in this report.

Phosphorus is one of the major nutrients required for plant nutrition

and is essential for life. Phosphorous is not the sole cause of eutrophication of natural waters, but there is evidence that it is the key element

required by fresh-water plants and, generally, is present in the least

amount relative to need.

of water is a measure of the hydrogen ion concentration, or more

specifically, the hydrogen ion activity.AIt is most conveniently ex-

pressed in logarithmic units and represents the negative base-10 log of the

hydrogen-ion activity in moles per liter.

Polychlorinated biphenols (PCB) are industrial chemicals that are

mixtures of chlorinated biphenyl compounds having various percentages of

chlorine.

Polychlorinated napthalenes (PCN) are organochemical compounds similar to polychlorinated biphenols, except the basic unit of molecular

structure is napthalene instead of the biphenol complex.

Sediment is solid material that originates mostly from disintegrated

rocks and is transported by, suspended in, or deposited from water; it

includes chemical and biochemical precipitates and decomposed organic material, such as humus. The quantity, characteristics, and cause of the

occurrence of sediment in streams are influenced by environmental factors

such as slope, length of slope, soil characteristics, land usage, and

quantity and intensity of precipitation.

Specific conductance is a measure of the ability of a water to conduct

an electrical current and is expressed in micromhos per centimeter at 25°C.

Because the specific conductance is related to the number and specific

chemical types of ions in solution, it can be used for approximating the

dissolved-solids content of water. Commonly, the concentration of dissolved solids (in milligrams per liter) is about 65 percent of the specific

conductance (in micromhos per centimeter at 25°C). This relation is not

constant from stream to stream, and it may even vary with time in the same

stream with changes in the composition of the water.

Streamflow is the volume of water and sediment that passes a given

point within a given period of time.

Suspended, recoverable is the amount of a given constituent that is

in solution after the part of a representative water/suspended-sediment

sample that is retained on a 0.45- Pm membrane filter has been digested by

a method (usually using a dilute acid solution) that results in dissolution

of only readily soluble substances. Complete dissolution of all the par-

VIII

ticulate matter is not achieved by the digestion treatment and, thus, the

determination represents something less than the "total" amount (that is,

less than 95 percent) of the constituent present in the sample. To achieve

comparability of analytical data, equivalent digestion procedures would be

required of all laboratories performing such analyses because different

digestion procedures are likely to produce different analytical results.

Determinations of "suspended, recoverable" constituents are made either by analyzing portions of the material collected on the filter or, more

commonly, by arithmetic difference, between the determinations of (1)

total recoverable, and (2) dissolved concentrations of the constituent.

Suspended sediment is any particulate or colloidal material that is

maintained in suspension by the upward components of turbulent currents.

Suspended-sediment concentration is the instantaneous or velocity-

weighted concentration of suspended sediment in the sampled zone (from the

water surface to a point approximately 0.3 feet above the bed) expressed as

milligrams of dry sediment per liter of water-sediment mixture.

Suspended-sediment discharge (tons/day) is the quantity of sediment,

as measured by dry weight or volume, that passes a section of stream in a

given time. It is computed by multiplying discharge, in cubic feet per

second, times suspended-sediment concentration, in milligrams per liter,

times 0.0027.

Suspended, total is the total amount of a given constituent in the part of a representative water/suspended-sediment sample that is retained on a 0.45- pm membrane filter. This term is used only when the analytical procedure assures measurement of at least 95 percent of the constituent determined. A knowledge of the expected form of the constituent in the sample, as well as the analytical methodology used, is required to determine when the results should be reported as "suspended, total."

Total organic carbon is an index of the concentration of dissolved-

and suspended-carbonaceous matter. High concentrations of organic matter

in an aquatic environment can influence the dissolved-oxygen balance. If

decomposable organic matter occurs in sufficient concentrations, intensive

bacterial activity can result in complete oxygen depletion.

Total, recoverable is the amount of a given constituent that is in

solution after a representative water/suspended-sediment sample has been

digested by a method (usually using a dilute acid solution) that results in

dissolution of only readily soluble substances. Complete dissolution of

all particulate matter is not achieved by the digestion treatment and,

thus, the determination represents something less than the "total" amount

(that is, less than 95 percent) of the constituent present in the dissolved

and suspended phases of the sample. To achieve comparability of analytical

data, equivalent digestion procedures would be required of all laboratories performing such analyses because different digestion procedures are

likely to produce different analytical results.

IX

Turbidity of a water is the reduction of transparency due to the

presence of suspended-particulate matter. Such material may consist of

clay or silt, finely divided organic matter, or other microscopic organisms which cause light to be scattered and absorbed rather than transmitted

in straight lines through the sample. One measurement of turbidity is the

Naphelometric Turbidity Unit (NTU).

X

WATER-QUALITY MONITORING OF THREE MAJOR

TRIBUTARIES TO THE CHESAPEAKE BAY—

INTERIM DATA REPORT

By David J. Lang and David Grason

ABSTRACT

The U.S. Geological Survey is monitoring the water quality of three

major tributaries to Chesapeake Bay at their fall lines to obtain estimates

of constituent inputs potentially available to the bay. The monitoring

sites are:ASusquehanna River at Conowingo, Md.; Potomac River at

Washington, D.C.; and James River at Cartersville, Va. Water-quality data

collected from October 1978 to April 1980 are presented in tables. Concentrations of major ions, nutrient and carbon species, metals, pesticides,

suspended sediment, and other selected constituents are presented for a

range of flows. The mean, standard deviation, minimum, maximum, and median

values for each constituent were determined by standard methods and are

presented for each sampling station. Bivariate linear regressions were

run for all constituents versus streamf low, specific conductance, and suspended sediment. Those relationships exhibiting coefficients of determination (R ) greater than 0.50 are tabulated.

INTRODUCTION

The U.S. Environmental Protection Agency (EPA) has been directed by

the U.S. Congress (Senate Report No. 94-326) to conduct an in-depth study

of the environmental quality of Chesapeake Bay. As part of the EPA study,

the U.S. Geological Survey (USGS) is monitoring the water quality of the

three major tributaries to Chesapeake Bay--the Susquehanna, Potomac, and

James Rivers (see fig. 1). Together, these rivers drain about 65 percent

of the land surface area contributing inflow to Chesapeake Bay.

The ultimate objectives of the project are to provide the following

water-quality information for the Susquehanna, Potomac, and James Rivers

regarding:

1. Estimated loadings of major ions, suspended sediment, and selected

nutrient species and trace metals.

2. Seasonal characterization of organic compounds, including selected

pesticides.

3. Error analysis and statements of other limitations inherent in the

information provided in the first two objectives.

1

A

EXPLANATION

Drainage Basin boundary

AAActive Surface Water station

VAActive Water Quality station

Active Surface Water and Water Quality station

50A 0A I_I I__!

50 MILES NY PA

42°

:(-' Susquehanna

River Basin

40°

PA 4

PA_ 'DEL...„Cg_nom! MD /

Poio--7, ..4,... 1 macA

1/- t•

(T,APotbm acA -,,,

•, MO_ ..Ab''.-- ,!s •-•AAAci• _ ,,,Afr'A\ irl,:

? °A.Basin Iy ''N_ 39_ S. 1_

/ Little Falls_,./

r -ri'_ 7.1/_/.....•••••_Chain Bridge_(

) ,/hc)i )_ x ,,,,,, rns sA›... ' CA

/51 A\

810';A)A "k

AJames ('_ ----\-))'' n ,,

38 / River ? - i A -----' ---,.../A\,,/A „ ' A -BasinA.,e5 ''_/i-orA\••A•A/A '' A- - ---' � \:'00 ::.•'-,-,-4.

S2—_ J7_ Cartersville ._ -,-.--4

5- ;'': -.;'...,--;_ •

• _`'k ) 'N:!..7--: - _

\., e. ..--.?" ; % "A\\.. ,_ _...,,, —\...,,„.....---- •2_ ..

37"-

Figure 1.--Location of drainage basins of the Susquehanna, Potomac, and

James Rivers.

2

This report is a compilation of water-quality data collected from

October 1978 to April 1980. It provides a base of information useful to

many investigators studying Chesapeake Bay and river-estuarine systems.

Load assessments and further data analysis will be presented in a final

report after completion of the data-collection phase in April 1981.

ACKNOWLEDGMENT

The authors are grateful to Mr. Howard Jarmon and his staff of the

Susquehanna Electric Co. for the cooperation and assistance received while

sampling at Conowingo Dam on the Susquehanna River.

HYDROLOGIC CONDITIONS

The three primary sampling sites are: Susquehanna River at Conowingo, Md.; Potomac River at Chain Bridge at Washington, D.C.; and James

River at Cartersville, Va. As the monitoring points on the Potomac and

James Rivers are not located at the mouth of the rivers, the data at these

sites do not directly reflect constituent input to Chesapeake Bay. However, the data are representative of constituent concentrations and loads

that are potentially available to the bay.

Precipitation during the January 1979 to March 1980 period of data

collection was 19 to 41 percent above average (table 1).ASome areas

recorded in excess of 65 in. of rain in the 1979 calendar year. For the

same period, streamflows at the sampling stations were 12, 46, and 37

percent above the historical mean flows for the Susquehanna, Potomac and

James Rivers, as shown in the following table.

Station

Susquehanna River at

Harrisburg, Pa.

Potomac River at

Washington, D.C.

James River at

Cartersville, Va.

1979 calendar

year average

discarge

(ft /s)

38,400

16,630

9,688

Long-term

average Percent

discarge above

(ft /s) mean

34,250 12

11,390 46

7,046 37

3

Table 1.--Monthly precipitation, in inches, at selected sites from January 1979 to March 1980.

[Data from the National Oceanic and Atmospheric Administration, 1979 and 1980]

A

Richmond, Va. College Park, Md.AHarrisburg, Pa.

Mean Mean Mean

Monthly monthly Monthly monthly Monthly monthly

MonthAYear total total* total total* total total*

JanuaryA1979 6.16 2.86 8.34 2.73 8.01 2.57

February 5.97 2.99 5.99 2.55 4.74 2.42

March 2.59 3.38 2.59 3.61 1.93 3.22

April 3.97 2.77 2.74 3.09 3.60 2.98

May 3.80 3.42 3.46 3.88 4.66 3.76

June 2.42 3.52 4.36 4.74 2.62 3.11.N

July 4.36 3.09 5.04 4.04 3.14 3.70

August 7.08 5.06 6.59 4.99 3.24 3.22

September 9.76 3.58 9.47 3.39 6.22 2.66

October 3.87 2.94 6.51 2.87 3.91 2.57

November 5.50 3.20 3.11 3.23 2.65 3.19

December 1.64 3.22 1.02 3.26 1.47 3.07

JanuaryA1980 6.05 2.86 2.72 2.73 .90 2.57

February 1.01 2.99 1.12 2.55 .82 2.42

March 5.49 3.38 5.52 3.61 5.47 3.22

Normal for period 49.26 51.27 44.68

Total for period 69.67 68.58 53.38

* Mean monthly totals based on precipitation records 1941-70.

DATA COLLECTION AND PRESENTATION

Data-Collection Sites

Figure 1 shows the location of the water-quality monitoring stations

used in the study. The Susquehanna River station is at Conowingo Dam,

Conowingo, Md., where, if flow conditions permit, base-flow water quality

is measured every 2 weeks. The James River station is at Cartersville,

Va., and the Potomac River site is at Chain Bridge at Washington, D.C.;

both are sampled monthly for base-flow water-quality constituents. The

USGS continuously monitors stage and flow at the Cartersville and

Conowingo sites. Potomac River flow is monitored at Little Falls, Md.,

half a mile upstream from Chain Bridge. Water samples analyzed for both

sediment and chemical quality are taken at high flows at all sites to

better understand the mechanisms that affect the water quality during

these critical periods of high mass transport.

Methods of Sample Collection and Analysis

All water-quality and suspended-sediment samples were collected by

USGS personnel by depth-integrating methods, as described by Guy and

Norman (1970). All water-quality samples were preserved in the field

according to methods described in the National Handbook of Recommended

Methods for Water Data Acquisition (U.S. Geological Survey, 1977) and

analyzed in the USGS Central Laboratory. Pesticide and organic carbon were

determined according to methods described by Goerlitz and Brown (1972),

and inorganic constituents were analyzed according to procedures cited by

Skougstad and others (1979). Sediment samples were analyzed in another

USGS laboratory, by methods described by Guy (1969).

Data Presentation

Simple bivariate linear regressions were run for all constituents

against discharge, specific conductance, and suspended sediment. The regression line was fitted analytically by the method of least squares.

2

The coefficient of determination (R ) was then calculated for each

bivariate regression. This coefficient is a measure of the degree to which

the variance or square of the standard deviation is explained or accounted

for by the linear regression. The greater R is, the better the regression

line fits the observed data points, and the more highly correlated one

variable is to another. Table 2 contains a list of constituents whose

coefficients of determination are greater than 0.50 and are derived from at

least six data pairs. Coefficients of determination less than 0.50 were

not considered significant because, below this value, less than 50 percent

of the variation of the dependent variable is being explained by the

independent variable.

5

- - - -

2

TABLE 2.--COEFFICIENTS OF DETERMINATION (R ) GREATER THAN 0.50 USING MORE THAN FIVE CORRELATED DATA PAIRS FOR BIVARIATE

LINEAR REGRESSIONS OF CHEMICAL CONSTITUENTS WITH STREAMFLOW, SPECIFIC CONDUCTANCE, AND SUSPENDED SEDIMENT (THE

NUMBER OF CORRELATED DATA PAIRS IN PARENTHESIS)

CONSTITUENT

ALKALINITY (MG/L AS CAC03)

ALUMINUM, SUSPENDED RECOV. (UG/L AS AL)

ALUMINUM, TOTAL RECOVERABLE (UG/L AS AL)

BARIUM, DISSOLVED RECOVERABLE (UG/L AS BA)

BARIUM, SUSPENDED RECOVERABLE (UG/L AS BA)

BARIUM, TOTAL RECOVERABLE (UG/L AS BA)

CALCIUM, DISSOLVED (MG/L AS CA)

CARBON, INORGANIC, DISSOLVED (MG/L AS C)

CARBON, ORGANIC DISSOLVED (MG/L AS C)

CARBON, ORGANIC SUSPENDED TOTAL (MG/L AS C)

CARBON, ORGANIC TOTAL (MG/L AS C)

CARBON, TOTAL (MG/L AS C)

CHLORIDE, DISSOLVED (MG/L AS CL)

CHROMIUM, SUSPENDED RECOV. (UG/L AS CR)

CHROMIUM, TOTAL RECOVERABLE (UG/L AS CR)

COBALT, SUSPENDED RECOVERABLE (UG/L AS CO)

COBALT, TOTAL RECOVERABLE (UG/L AS CO)

COPPER, DISSOLVED (UG/L AS CU)

COPPER, SUSPENDED RECOVERABLE (UG/L AS CU)

COPPER, TOTAL RECOVERABLE (UG/L AS CU)

HARDNESS (MG/L AS CAC03)

HARDNESS, NONCARBONATE (MG/L CAC03)

IRON, DISSOLVED (UG/L AS FE)

IRON, SUSPENDED RECOVERABLE (UG/L AS FE)

IRON, TOTAL RECOVERABLE (UG/L AS FE)

LEAD, SUSPENDED RECOVERABLE (UG/L AS PB)

LEAD, TOTAL RECOVERABLE (UG/L AS PB)

MAGNESIUM, DISSOLVED (MG/L AS MG)

MANGANESE, SUSPENDED RECOV. (UG/L AS MN)

MANGANESE, TOTAL RECOVERABLE (UG/L AS MN)

MERCURY, TOTAL RECOVERABLE (UG/L AS HG)

NICKEL, TOTAL RECOVERABLE (UG/L AS NI)

NITROGEN, AMMONIA TOTAL (MG/L AS N)

NITROGEN, AMMONIA TOTAL (MG/L AS NH4)

NITROGEN, AMMONIA + ORGANIC TOTAL (MG/L AS N)

NITROGEN, NH4 + ORG. SUSP. TOTAL (MG/L AS N)

NITROGEN, ORGANIC DISSOLVED (MG/L AS N)

NITROGEN, ORGANIC TOTAL (MG/L AS N)

NITROGEN, NITRITE DISSOLVED (MG/L AS N)

NITROGEN, TOTAL (MG/L AS N)

NITROGEN, TOTAL (MG/L AS NO3)

PHOSPHORUS, DISSOLVED (MG/L AS P)

PHOSPHORUS, ORTHO. TOTAL (MG/L AS P)

PHOSPHORUS, TOTAL (MG/L AS P)

PHOSPHORUS, TOTAL (MG/L AS PO4)

SEDIMENT, SUSPENDED (MG/L)

SELENIUM, TOTAL (UG/L AS SE)

SODIUM, DISSOLVED (MG/L AS NA)

SODIUM + POTASSIUM, DISSOLVED (MG/L AS NA)

SOLIDS, RESIDUE AT 105 DEG. C, TOTAL (MG/L)

SOLIDS, RESIDUE AT 180 DEG. C DISSOLVED (MG/L)

STREAMFLOW, INSTANTANEOUS (CFS)

SULFATE, DISSOLVED (MG/L AS SO4)

ZINC, DISSOLVED (UG/L AS ZN)

ZINC, SUSPENDED RECOVERABLE (UG/L AS ZN)

ZINC, TOTAL RECOVERABLE

SUSQUEHANNA RIVER AT POTOMAC RIVER AT CHAIN JAMES RIVER AT

CONOWINGO,2BRIDGE2D.C. CARTERSVILLE, VA.MD. AT WASHINGTON,2

STREAM- SPECIFIC SUSPENDED STREAM- SPECIFIC SUSPENDED STREAM- SPECIFIC SUSPENDED

FLOW CONDUC- SEDIMENT FLOW CONDUC- SEDIMENT FLOW CONDUC- SEDIMENT

TANCE TANCE TANCE

- 0.82(42) - - 0.83(29) - - 0.66(22) -

0.84(43) - 0.83(25) 0.63(22) - 0.99(17) - - -

.83(43) - .82(25) .63(22) - .99(17) - - -

- - - - - - - .87(7) -

- - - .91(6) - .92(6) - - -

- - - .56(6) - .73(6) - - -

.56(38) .91(42) - - .87(29) - - .91(22) -

- - - - .55(21) .62(14) - .72(11) -

- - - - - .72(17) - - -

- - - .67(6) - 1.99(5) - - -

- - - .66(17) - .84(14) - - -

- - - - - .50(11) - - -

- .75(42) - - .58(29) - - .85(22) -

- - - - - .61(6) - - -

- - - - - .59(13) - - -

- - - .73(6) - .99(6) - - -

- - - .71(6) - .99(6) - - -

- - - - .66(6) .59(6) - - -

- - - .70(6) - .95(6) - .61(7) -

- - .91(13) - - .95(13) - - -

.54(38) .91(42) - - .88(29) - - .91(22) -

.54(35) .81(38) - - .62(29) .60(22) - - -

- - - - - - - - 0.56(8)

.86(43) - .99(18) .63(20) - .98(16) 0.99(7) - .93(7)

.88(45) - .98(26) .63(22) - .98(17) .99(7) - .93(8)

- - - .59(6) - .85(6) - .71(7) -

- - - - - .74(13) - - -

.51(38) .91(42) - - .87(29) - - .88(22) -

.60(44) - .86(26) .58(23) - .99(18) .99(9) - .94(10)

.78(44) - .90(26) .59(23) - .99(18) .99(9) - .93(10)

- - .58(13) - - - - - -

- - - .54(13) - - - - -

- - - - - .51(23) - - -

- - - - - .51(23) - - -

- - - - - .90(23) .52(14) - -

- - - - - .89(21) - - -

- .51(16) - - - - -

- - - .89(23) - - -

- - - - - .55(12) - - -

- - - - - .80(23) - - -

- - - - - .80(23) - - -

- - - - - .53(22) - .54(28) -

- - - - - - .71(7) - -

.73(45) - .89(27) - - .95(23) .72(14) - -

.73(45) - .89(27) - - .96(23) .72(14) - -

.92(25) - 1.00 - - 1.00 .62(11) - 1.00

.75(18) - .84(10) - - - - - -

- .86(42) - - .77(29) - - .90(22)

- .87(19) - - - - - .90(10) -

- .73(32) - - - .86(12) - - -

- .81(12) - - .84(19) - - .90(19) -

1.00 - .92(25) 1.00 - - 1.00 - .62(11)

- .91(42) - - .80(29) - - .73(22) -

- - - .61(6) - .97(6) - - -

- - - - - .51(6) - - -

- - .55(13) - - .88(13) - - -

'Because of its potential significance to this study, this coefficient of determination is included in this table

even though it is based on only five correlated data pairs.

The data in table 2 demonstrate that there exists significant correlations--between chemical constituents for which data are available on an

infrequent, periodic basis, and streamflow, specific conductance, and suspended sediment for which continuous or once daily data are available.

Along with continuous discharge record, these correlations can be used to

provide accurate estimates of constituent loadings.

Tables 3, 4, and 5 list the number of samples (n), maximum, minimum,

mean, median, and standard deviation for all parameters collected through

April 2, 1980.

A compilation of all water-quality data, except pesticides, for the

three stations is found in supplemental data A, B, and C. The data are

from the 1979 and 1980 water years.

Pesticide data collected in connection with the study are assembled

in supplemental data D. Atrazine and 2,4-D were the two constituents

detected most frequently; their concentrations were highest during summer

runoff.

Suspended-sediment concentrations and loads for the Potomac River at

Chain Bridge and the Susquehanna River at Conowingo are found in supplemental data E and F. Loads will not be tabulated for the James River

station until more suspended-sediment information is available.

Bottom material samples were collected approximately 1 mile downstream from Conowingo Dam on the Susquehanna River, on November 3, 1979.

Results of this analysis are found in supplemental data G.

7

TABLE 3.--BASIC STATISTICS OF WATER-QUALITY DATA FOR SUSQUEHANNA RIVER AT CONOWINGO, MARYLAND (01578310)

NO. STANWATSTORE/ OF DARD STORET ANAL- DEVI- MINIMUM MAXIMUM

CODE CONSTITUENT YSES MEAN ATION VALUE2VALUE MEDIAN

00410 ALKALINITY2(MG/L AS CAC03) 56 32.79 13.45 0.00 59.00 30.50 01106 ALUMINUM,2DISSOLVED2(UG/L AS2AL) 67 129.55 134.23 0.00 600.00 100.00 01107 ALUMINUM,2SUSPENDED RECOV. (UG/L AS22AL) 66 937.12 2167.78 0.00 12000.00 330.00 01105 ALUMINUM,2TOTAL RECOVERABLE2(UG/L AS AL) 67 1090.45 2139.55 0.00 12000.00 600.00 01000 ARSENIC,2DISSOLVED2(UG/L AS AS) 5 0.80 0.84 0.00 2.00 1.00 01001 ARSENIC,2SUSPENDED TOTAL2(UG/L AS AS) 5 0.40 0.55 0.00 1.00 0.00 01002 ARSENIC,2TOTAL (UG/L AS22AS) 19 1.74 1.52 0.00 6.00 1.00 01005 BARIUM,2DISSOLVED2(UG/L AS BA) 4 17.50 20.62 0.00 40.00 15.00 01006 BARIUM,2SUSPENDED RECOVERABLE2(UG/L AS BA) 5 22.00 43.82 0.00 100.00 1.00 01007 BARIUM,2TOTAL RECOVERABLE2(UG/L AS BA) 5 30.00 44.72 0.00 100.00 0.00 01025 CADMIUM,2DISSOLVED2(UG/L AS CD) 5 0.80 0.84 0.00 2.00 1.00 01026 CADMIUM,2SUSPENDED RECOVERABLE2(UG/L AS CD) 5 4.20 8.29 0.00 19.00 0.00 01027 CADMIUM,2TOTAL RECOVERABLE2(UG/L AS CD) 31 1.87 4.37 0.00 20.00 0.00 00915 CALCIUM,2DISSOLVED2(MG/L AS CA) 56 20.11 7.11 9.30 33.00 18.50 00691 CARBON,2INORGANIC,2DISSOLVED2(MG/L AS2C) 36 9.99 4.53 1.70 24.00 10.00 00681 CARBON,2ORGANIC DISSOLVED2(MG/L AS C) 34 3.36 1.60 1.00 7.40 2.95 00689 CARBON,2ORGANIC SUSPENDED TOTAL2(MG/L AS N) 7 1.47 1.05 0.30 2.80 1.50 00680 CARBON,2ORGANIC TOTAL2(MG/L AS C) 42 3.04 1.52 1.30 7.60 2.45 00690 CARBON,2TOTAL2(MG/L AS C) 41 14.59 3.18 10.00 25.00 15.00 70953 CHLOR-A,2PHYTOPLANKTON2(UG/L) 46 6.84 5.27 0.00 18.40 6.06 70954 CHLOR-B,2PHYTOPLANKTON2(UG/L) 46 0.00 0.00 0.00 0.00 0.00 00940 CHLORIDE,2DISSOLVED2(MG/L AS CL) 56 9.90 3.22 3.40 16.00 9.20 01030 CHROMIUM,2DISSOLVED2(UG/L AS CR) 5 10.00 0.00 10.00 10.00 10.00 01031 CHROMIUM,2SUSPENDED RECOV.2(UG/L AS CR) 5 4.00 8.94 0.00 20.00 0.00 01034 CHROMIUM,2TOTAL RECOVERABLE2(UG/L AS CR) 30 11.03 7.95 0.00 30.00

TABLE 4.--BASIC STATISTICS OF WATER-QUALITY DATA FOR THE POTOMAC RIVER AT CHAIN BRIDGE AT WASHINGTON,

D.C. (01646580)

NO. STANWATSTORE/ OF DARD

STORET ANAL- DEVI- MINIMUM MAXIMUM

CODE CONSTITUENT YSES MEAN ATION VALUE VALUE MEDIAN

00410 ALKALINITY2CAC03) 63.39 24.38 29.00 140.00 61.00(MG/L AS2 38

DISSOLVED2AL) 30.0001106 ALUMINUM,2(UG/L AS2 35 101.43 92.55 400.00 60.00

01107 ALUMINUM,2 AL) 3563.82 4429.42 0.00 15000.00 1600.00SUSPENDED RECOV. (UG/L AS2234

01105 ALUMINUM,2(UG/L AS234 3647.65 15000.00 1850.00TOTAL RECOVERABLE2AL) 4384.08 80.00

01000 ARSENIC,2(UG/L AS2 6 0.63 2.00 1.00DISSOLVED2AS) 1.00 0.00

01001 ARSENIC,2(UG/L AS25 0.40 '0.55 0.00 1.00 0.00SUSPENDED TOTAL2AS)

01002 ARSENIC,2AS) 1.18 0.00 1.00TOTAL (UG/L AS22 11 0.87 3.00

01005 BARIUM,2(UG/L AS BA) 42.50 0.00 35.00DISSOLVED2 4 41.93 100.00

01006 BARIUM,2 (UG/L AS BA) 60.00 0.00 0.00SUSPENDED RECOVERABLE2 5 89.44 200.00

01007 BARIUM,2(UG/L AS BA) 66.67 0.00 50.00TOTAL RECOVERABLE2 6 81.65 200.00

01025 CADMIUM,2(UG/L AS CD) 3.00 0.00 1.50DISSOLVED2 6 4.56 12.00

01026 CADMIUM,2 (UG/L AS CD) 0.40 0.89 0.00 2.00 0.00SUSPENDED RECOVERABLE25

TOTAL RECOVERABLE2CD) 0.0001027 CADMIUM,2(UG/L AS217 0.47 0.87 3.00 0.00

00915 CALCIUM,2(MG/L AS2 38 26.87 9.35 58.00DISSOLVED2CA) 13.00 25.00

INORGANIC,2 C) 1.8000691 CARBON,2DISSOLVED (MG/L AS2226 14.18 6.21 24.00 14.50

00681 CARBON,2 C) 4.07 1.65 2.10 8.10 3.80ORGANIC DISSOLVED (MG/L AS2232

00689 CARBON,2SUSPENDED TOTAL211 5.72 20.00 1.30ORGANIC2(MG/L AS N) 2.96 0.20

00680 CARBON,2(MG/L AS C) 28 7.35 1.60 25.00 5.75ORGANIC TOTAL2 4.98

00690 CARBON,2(MG/L AS C) 25.46 6.76 19.00 52.00 24.50TOTAL2 24

70953 CHLOR-A,2(UG/L) 25.41 0.00 15.65PHYTOPLANKTON2 28 27.82 81.00

70954 CHLOR-B,2(UG/L) 0.56 0.00 0.00PHYTOPLANKTON2 28 1.86 8.79

00940 CHLORIDE,2(MG/L AS2 38 9.42 4.53 25.00DISSOLVED2CL) 4.50 7.65

DISSOLVED2CR) 0.0001030 CHROMIUM,2(UG/L AS2 6 13.33 10.33 30.00 10.00

01031 CHROMIUM,2 CR) 8.33 0.00 10.00SUSPENDED RECOV. (UG/L AS226 7.53 20.00

01034 CHROMIUM,2(UG/L AS CR) 13.06 9.56 0.00 40.00 10.00TOTAL RECOVERABLE2 17

01035 COBALT,2(UG/L AS CO) 6 0.67 0.82 0.00 .50DISSOLVED2 2.00

01036 COBALT,2 CO) 5 4.60 8.23 19.00 0.00SUSPENDED RECOVERABLE (UG/L AS22 0.00

01037 COBALT,2(UG/L AS CO) 4.33 0.00 1.50TOTAL RECOVERABLE2 6 7.34 19.00

UM-MF2ML) 1.0031625 COLIFORM, FECAL, 0.7222(COLS./100218 855.11 2580.37 11000.00 60.00

DISSOLVED2CU) 0.0001040 COPPER,2(UG/L AS2 6 1.33 1.03 3.00 1.00

01041 COPPER,2 CU) 7.50 0.00 3.00SUSPENDED RECOVERABLE (UG/L AS226 12.02 31.00

01042 COPPER,2 CU) 6.06 0.00 4.00TOTAL RECOVERABLE (UG/L AS2217 7.67 34.00

DISSOLVED2F) 0.0000950 FLUORIDE,2(MG/L AS2 38 0.12 0.10 0.70 0.10

00900 HARDNESS2 38 33.00 200.00(MG/L AS CAC03) 91.34 43.00 86.00

01046 IRON,2 FE) 36 58.92 53.62 0.00 45.00DISSOLVED (UG/L AS222 270.00

01044 SUSPENDED RECOVERABLE (UG/L AS2232 8909.68 10.00 30000.00IRON,2 FE) 7153.12 2750.00

01045 IRON,2(UG/L AS234 6905.29 8695.33 70.00 30000.00 2800.00TOTAL RECOVERABLE2FE)

01049 LEAD,2PB) 7.19 14.82 0.00 2.00DISSOLVED (UG/L AS22 16 60.00

SUSPENDED RECOVERABLE2PB) 0.0001050 LEAD,2 (UG/L AS216 23.81 32.72 120.00 9.00

01051 LEAD,2(UG/L AS227 30.17 130.00TOTAL RECOVERABLE2PB) 23.59 0.00 10.00

DISSOLVED2MG) 2.5000925 MAGNESIUM,2(MG/L AS238 5.87 2.35 13.00 5.35

01056 MANGANESE,2(UG/L AS236 9.83 6.92 30.00DISSOLVED2MN) 0.00 8.50

01054 MANGANESE,2 MN) 304.60 339.50 1.00 1200.00 170.00SUSPENDED RECOV. (UG/L AS2235

01055 MANGANESE,2(UG/L AS MN) 313.71 337.40 10.00 1200.00 190.00TOTAL RECOVERABLE2 35

01067 NICKEL,2RECOVERABLE (UG/L AS2216 9.62 30.00TOTAL2 NI) 10.12 1.00 6.00

00608 NITROGEN,2 N) 0.05 0.07 0.00 0.31 0.02AMMONIA DISSOLVED (MG/L AS2230

00610 NITROGEN,2(MG/L AS N) 40 0.14 0.24 0.00 0.06AMMONIA TOTAL2 0.90

AMMONIA2(MG/L AS2 0.3100623 NITROGEN,2+ ORGANIC DIS.2N) 37 0.46 0.06 1.10 0.39

00625 NITROGEN,2 (MG/L AS N) 42 0.93 0.08 3.50 0.60AMMONIA + ORGANIC TOTAL22 0.82

00631 NITROGEN,2 (MG/L AS N) 34 1.18 0.40 0.39 1.90 1.30NO2 + NO3 DISSOLVED2

00630 NITROGEN, NO222(MG/L AS N) 40 1.24 0.36 0.41 2.00 1.30+ NO3 TOTAL2

ORGANIC DISSOLVED2N) 0.0300607 NITROGEN,2(MG/L AS226 0.50 0.31 1.10 0.41

00605 NITROGEN,2(MG/L AS N) 0.82 0.71 0.06 0.56ORGANIC TOTAL2 40 2.60

DISSOLVED2N) 0.8000602 NITROGEN,2(MG/L AS2 28 1.79 0.52 2.90 1.70

00600 NITROGEN, TOTAL22 40 0.95 4.70(MG/L AS N) 2.20 1.10 2.00

00300 OXYGEN,2(MG/L) 17 10.88 2.31 6.70 14.20 10.80DISSOLVED2

00400 PH2 29 0.29 8.70(UNITS) 8.16 7.40 8.10

70507 PHOSPHORUS, ORTHO. TOTAL222P) 0.05 0.00 0.04(MG/L AS231 0.05 0.23

00666 PHOSPHORUS,2(MG/L AS241 0.05 0.04 0.00 0.17 0.04DISSOLVED2P)

00665 PHOSPHORUS, TOTAL22P) 42 0.23 0.25 0.00 1.00 0.12(MG/L AS2

60050 PHYTOPLANKTON, TOTAL22(CELLS PER22ML) 7 23512.86 39536.81 190.00 110000.00 3500.00

00935 POTASSIUM,2(MG/L AS2 2.28 0.79 1.85DISSOLVED2K) 38 1.20 4.30

80154 SEDIMENT,2(MG/L) 290 158.23 222.97 2.00 46.00SUSPENDED2 1169.00

00955 SILICA,2AS2 40 2.10 8.40DISSOLVED (MG/L22 5.08 5.85SI02) 0.20

DISSOLVED2AG) 0.0001075 SILVER,2(UG/L AS2 6 0.00 0.00 0.00 0.00

00930 SODIUM,2(MG/L AS NA) 38 7.96 4.67 3.00 26.00 7.25DISSOLVED2

00500 SOLIDS,2105 DEG. C, TOTAL22225 256.30 1030.00RESIDUE AT22(MG/L) 326.24 115.00 209.00

70300 SOLIDS,2AT 180 DEG. C22(MG/L) 22 160.86 51.33 70.00 306.00 153.50RESIDUE2DISSOLVED2

70301 SOLIDS,2 DISSOLVED238 43.93 284.00SUM OF CONSTITUENTS,2(MG/L) 126.42 63.00 120.00

00095 SPECIFIC CONDUCTANCE2 36 238.86 72.87 135.00 450.00 220.00(MICROMHOS)

31673 STREPTOCOCCI, FECAL, KF222100/ML) 5501.61 19669.10AGAR (COLS. PER22218 2.00 84000.00 270.00

00945 SULFATE,2(MG/L AS2 38 13.14 74.00DISSOLVED2SO4) 27.21 11.00 24.50

01090 ZINC,2(UG/L AS2ZN) 6 17.00 31.21 0.00 80.00 6.00DISSOLVED2

01091 ZINC,2SUSPENDED RECOVERABLE2(UG/L AS26 25.88 70.00ZN) 35.00 0.00 40.00

TOTAL RECOVERABLE2ZN) 10.0001092 ZINC,2(UG/L AS217 32.94 32.93 150.00 30.00

9

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222

TABLE 5.--BASIC STATISTICS OF WATER-QUALITY DATA FOR THE JAMES RIVER AT CARTERSVILLE, VIRGINIA (02035000)

NO.2STAN-2 WATSTORE/ OF2DARD2

MINIMUM MAXIMUMSTORET ANAL-2DEVI-22 2 CODE CONSTITUENT YSES MEAN ATION VALUE VALUE MEDIAN

00410 ALKALINITY2 24 12.79 67.00(MG/L AS CAC03) 43.62 21.00 42.00

01106 ALUMINUM,2(UG/L AS AL) 21 211.14 4.00 600.00 200.00DISSOLVED2 131.28

01107 ALUMINUM,2 AL) 1033.33 1625.10 0.00 6300.00 400.00SUSPENDED RECOV. (UG/L AS2215

01105 ALUMINUM,2(UG/L AS AL) 17 1159.65 4.00 6700.00 600.00TOTAL RECOVERABLE2 1583.68

01000 ARSENIC,2(UG/L AS2 7 1.41 3.00DISSOLVED2AS) 1.00 0.00 0.00

01001 ARSENIC,2(UG/L AS AS) 3 1.33 0.00 4.00 0.00SUSPENDED TOTAL2 2.31

01002 ARSENIC,2(UG/L AS2 7 1.77 4.00 1.00TOTAL2AS) 1.86 0.00

01005 BARIUM,2(UG/L AS BA) 42.86 29.84 0.00 100.00 40.00DISSOLVED2 7

01006 BARIUM,2 (UG/L AS BA) 50.00 86.60 0.00 200.00 0.00SUSPENDED RECOVERABLE2 5

01007 BARIUM,2(UG/L AS BA) 66.67 81.65 0.00 200.00 50.00TOTAL RECOVERABLE2 6

01025 CADMIUM,2(UG/L AS CD) 7 1.00 0.58 0.00 2.00 1.00DISSOLVED2

01026 CADMIUM,2 (UG/L AS CD) 6 1.00 0.00 3.00 0.00SUSPENDED RECOVERABLE2 1.26

01027 CADMIUM,2(UG/L AS CD) 9 1.22 1.30 4.00 1.00TOTAL RECOVERABLE2 0.00

00915 CALCIUM,2(MG/L AS CA) 15.80 8.40 16.00DISSOLVED2 24 4.74 31.00

00691 CARBON,2DISSOLVED (MG/L AS2213 1.95 14.00 11.00INORGANIC,2C) 11.22 8.30

00681 CARBON,2(MG/L AS C) 18 5.38 3.99 16.00 4.10ORGANIC DISSOLVED2 1.20

00689 CARBON,2 (MG/L AS N) 1.34 1.90 0.20 4.70 0.70ORGANIC SUSPENDED TOTAL25

00680 CARBON,2(MG/L AS C) 3.56 1.60 2.70ORGANIC TOTAL2 21 1.76 7.70

00690 CARBON,2(MG/L AS C) 14 15.78 12.00 19.00 16.00TOTAL2 1.84

70953 CHLOR-A,2(UG/L) 7 2.62 2.75 0.00 6.26 2.12PHYTOPLANKTON2

70954 CHLOR-B,2(UG/L) 7 0.00 0.00 0.00 0.00PHYTOPLANKTON2 0.00

00940 CHLORIDE,2(MG/L AS CL) 24 7.89 3.00 28.00 6.00DISSOLVED2 5.71

01030 CHROMIUM,2(UG/L AS CR) 8.57 6.90 0.00 20.00 10.00DISSOLVED2 7

01031 CHROMIUM,2(UG/L AS CR) 6 15.00 0.00 30.00 15.00SUSPENDED RECOV.2 10.49

01034 CHROMIUM,2(UG/L AS CR) 6 23.33 10.00 50.00 10.00TOTAL RECOVERABLE2 15.06

01035 COBALT,2(UG/L AS CO) 0.57 0.53 0.00 1.00 1.00DISSOLVED2 7

01036 COBALT,2 (UG/L AS CO) 1.17 0.00 0.00SUSPENDED RECOVERABLE2 6 1.60 4.00

01037 COBALT,2(UG/L AS CO) 1.42 0.00 1.00TOTAL RECOVERABLE2 7 1.90 5.00

31625 COLIFORM, FECAL,22(COLS./100217 716.53 1269.37 9.00 4100.00 61.000.7 UM-MF2ML)

01040 COPPER,2(UG/L AS2 7 3.43 2.99 1.00 10.00DISSOLVED2CU) 3.00

01041 COPPER,2 (UG/L AS CU) 7 3.43 0.00 8.00 3.00SUSPENDED RECOVERABLE2 3.64

01042 COPPER,2(UG/L AS CU) 9 5.67 2.96 3.00 11.00 5.00TOTAL RECOVERABLE2

00950 FLUORIDE,2(MG/L AS2 24 0.09 0.03 0.10DISSOLVED2F) 0.00 0.10

00900 HARDNESS2 24 53.29 15.39 100.00 53.00(MG/L AS CAC03) 29.00

01046 IRON,2 FE) 90.00 10.00 80.00DISSOLVED (UG/L AS22 23 60.60 300.00

01044 IRON,2 FE) 2548.42 3891.67 210.00 14000.00 1000.00SUSPENDED RECOVERABLE (UG/L AS2219

01045 IRON,2(UG/L AS223 3247.83 4539.61 14000.00TOTAL RECOVERABLE2FE) 290.00 1100.00

01049 LEAD,2PB) 2.14 1.95 0.00 5.00 2.00DISSOLVED (UG/L AS22 7

SUSPENDED RECOVERABLE2PB) 0.0001050 LEAD,2 (UG/L AS27 5.71 6.92 19.00 2.00

01051 LEAD,2(UG/L AS PB) 9 6.44 0.00 21.00 5.00TOTAL RECOVERABLE2 6.39

00925 MAGNESIUM,2(MG/L AS224 3.38 0.97 5.90DISSOLVED2MG) 1.90 3.20

DISSOLVED2MN) 0.0001056 MANGANESE,2(UG/L AS225 5.60 4.75 20.00 4.00

01054 MANGANESE,2(UG/L AS MN) 25 82.84 2.00 340.00 30.00SUSPENDED RECOV.2 105.73

01055 MANGANESE,2(UG/L AS MN) 25 87.60 10.00 350.00 40.00TOTAL RECOVERABLE2 105.76

01067 NICKEL,2(UG/L AS NI) 4.40 2.00 4.00TOTAL RECOVERABLE2 5 2.51 7.00

00608 NITROGEN,2 N) 0.02 0.00 0.01AMMONIA DISSOLVED (MG/L AS2216 0.02 0.06

00610 NITROGEN,2(MG/L AS N) 0.04 0.00 0.03AMMONIA TOTAL2 30 0.05 0.23

00623 NITROGEN,2 N) 0.26 0.26 0.04 1.30 0.16AMMONIA + ORGANIC DIS. (MG/L AS2228

00625 NITROGEN,2 (MG/L AS N) 0.43 0.29 0.00 1.40 0.34AMMONIA + ORGANIC TOTAL230

00631 NITROGEN,2 (MG/L AS N) 0.29 0.15 0.28NO2 + NO3 DISSOLVED217 0.06 0.37

00630 NITROGEN. NO222AS N) 0.37 0.03 0.29+ NO3 TOTAL (MG/L2230 0.35 2.10

00607 NITROGEN,2(MG/L AS N) 15 0.33 0.32 0.07 0.27ORGANIC DISSOLVED2 1.30

ORGANIC TOTAL2 1.30 0.3000605 NITROGEN,2(MG/L AS N) 30 0.39 0.28 0.00

00602 NITROGEN,2(MG/L AS N) 0.63 0.32 0.48DISSOLVED2 16 0.33 1.60

00600 NITROGEN, TOTAL22 30 0.51 2.80(MG/L AS N) 0.80 0.23 0.62

00300 OXYGEN,2(MG/L) 30 10.91 7.70 14.10 10.90DISSOLVED2 1.89

00400 PH2 32 0.48 8.60(UNITS) 7.20 6.30 7.25

70507 PHOSPHORUS, ORTHO. TOTAL222P) 0.05 0.02 0.03(MG/L AS221 0.04 0.19

00666 PHOSPHORUS,2(MG/L AS230 0.05 0.03 0.15DISSOLVED2P) 0.02 0.04

00665 PHOSPHORUS, TOTAL22P) 0.12 0.10 0.04 0.48 0.09(MG/L AS2 30

60050 PHYTOPLANKTON, TOTAL22 7 7222.74 43.00 20000.00 1400.00(CELLS PER ML) 3951.14

00935 POTASSIUM,2 1.28 7.00 1.40DISSOLVED2(MG/L AS2K) 24 1.88 0.90

80154 SEDIMENT,2(MG/L) 202.00 140.00 2.00 449.00 234.00SUSPENDED2 53

00955 SILICA,2(MG/L AS2 24 7.58 0.94 6.00 9.50DISSOLVED2SI02) 7.60

01075 SILVER,2(UG/L AS2AG) 7 0.00 0.00 0.00 0.00 0.00DISSOLVED2

00930 SODIUM,2(MG/L AS NA) 5.31 3.51 2.50 16.00 4.45DISSOLVED2 24

RESIDUE2 (MG/L) 34.0000500 SOLIDS,2AT 105 DEG. C, TOTAL22211 98.73 51.31 236.00 86.00

70300 SOLIDS,2 C DISSOLVED2(MG/L) 19 87.63 25.02 63.00 149.00RESIDUE AT 180 DEG.2 77.00

70301 SOLIDS,2 DISSOLVED224 23.85 149.00SUM OF CONSTITUENTS,2(MG/L) 78.96 49.00 72.50

00095 SPECIFIC CONDUCTANCE2 32 137.78 75.00 303.00 132.00(MICROMHOS) 46.31

31673 STREPTOCOCCI, FECAL,22KF AGAR (COLS.22PER 100/MU 17 765.65 1179.57 11.00 3900.00 92.00

00945 SULFATE,2(MG/L AS2 24 3.57 21.00DISSOLVED2SO4) 9.98 6.90 9.00

01090 ZINC,2ZN) 7 7.28 7.09 0.00 8.00DISSOLVED (UG/L AS22 20.00

01091 ZINC,2 ZN) 37.14 20.00 30.00SUSPENDED RECOVERABLE (UG/L AS227 20.59 70.00

01092 ZINC,2(UG/L AS29 18.71 80.00TOTAL RECOVERABLE2ZN) 43.33 20.00 40.00

10

http:20000.00http:14000.00http:14000.00http:21583.68

REFERENCES

Goerlitz, D. F., and Brown, Eugene, 1972, Methods for analysis of organic

substances in water: U.S. Geological Survey Techniques of Water-Resources Investigations, Book 5, Chapter A3, 40 p.

Guy, H. P., 1969, Laboratory theory and methods for sediment analysis:

U.S. Geological Survey Techniques of Water-Resources Investigations,

Book 5, Chapter Cl, 58 p.

Guy, H. P., and Norman, U. W., 1970, Field methods for measurement of

fluvial sediment:AU.S. Geological Survey Techniques of Water-Re-

sources Investigations, Book 3, Chapter C2, 59 p.

National Oceanic and Atmospheric Administration, 1979 (v. 82), 1980 (v. 83),

Climatological data for Maryland;Atemperature and precipitation

extremes: National Oceanic and Atmospheric Administration, v. 82,

nos. 1-12; v. 83, nos. 1-3 [no. 3, in press].

National Oceanic and Atmospheric Administration, 1979 (v. 84), 1980 (v. 85),

Climatological data for Pennsylvania;Atemperature and precipi-

tation extremes: National Oceanic and Atmospheric Administration

v. 84, nos. 1-12; v. 85, nos. 1-3 [no. 3, in press].

National Oceanic and Atmospheric Administration, 1979, (v. 82), 1980

(v. 83), Climatological data for Virginia; temperature and precipitation extremes: National Oceanic and Atmospheric Administration, v.

82, nos. 1-12; v. 83, nos. 1-3 [no. 3, in press].

Skougstad, M. W., Fishman, M. J., Friedman, L. C., Erdmann, D. E., and

Duncan, S. S., 1979, Methods for determination of inorganic substances

in water and fluvial sediments: U.S. Geological Survey Techniques of

Water-Resources Investigations, Book 5, Chapter Al, 626 p.

U.S. Geological Survey, 1977, National handbook of recommended methods

for water-data acquisition: U.S. Geological Survey, Office of Water-

Data Coordination.

Wetzel, R. G., 1975, Limnology: New York, W. B. Saunders, 743 p.

11

SUPPLEMENTAL DATA

13

SUPPLEMENTAL DATA A:AWATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980

Susquehanna River at Conowingo, Maryland (01578310)

SAMPLEASPE- COLI- STREPLOC-ACIFICA FORM, TOCOCCI

ATION, STREAM-AA FECAL,CON- FECAL,

CROSS FLOw,AATEMPER- TUR-A0.7DUCT-A OXYGEN,AKF AGAR

SECTION INSTAN-AAPHAATEMPER-BID-AUM-MF (COLS.ANCE ATURE,ADIS-A

TIME (% FROM (MICRO-AAIRAITYAA(COLS./TANEOUSAA ATURE SOLVEDAPER

DATE L BANK) MHOS) (UNITS) (DEG C) C) (NTU)AA(MG/L1 100AA100A(CFS)AAA (DEGAAAAA ML) ML)

(00002) (00061) (00095) (00400) (00020) (00010) (00076) (00300) (31625) (31673)

NOVA• 1978

04... 1115 -- 61000 315 8.0 14.0 13.5 9.3

28... 1030 25 63500 310 1.0 4.0 9.5 10.0

28... 1100 75 63200 310 7.9 4.0 9.5 10.0

DEC

21... 1000 75 71300 205 8.0 7.0 3.0 13.0

21... 1100 25 70600 210 7.7 7.0 3.0 13.0

JANA, 1979

10... 1030 75 102000 140 7.9 -.5 1.0 14.6 10... 1115 25 120300 165 7.5 -- 1.0 14.9 25... 1330 75 285000 205 7.7 3.5 1.5 15.4 25... 1430 25 365000 205 8.1 3.5 1.5 15.2 29... 1015 75 172000 155 8.2 7.0 1.5 14.4 29... 1115 25 158000 160 7.7 7.0 1.5 14.6

FE4 16... 1000 75 49200 210 7.5 -5.0 1.0 13.6 16... 1030 25 48500 255 7.3 -5.0 1.5 13.5 28... 0945 179000 155 7.1 5.5 1.0 14.5

MAR 07... 1700 448000 125 7.9 7.0 4.5 13.6 08... 1630 396000 110 7.9 8.0 5.0 13.0 09... 1500 305000 115 7.7 11.0 5.5 13.8 12... 1600 171000 145 8.1 5.5 4.5 13.7 13... 1500 159000 160 A.0 10.0 4.0 11.6 --28... 1000 152000 190 8.1 6.0 7.0 10 12.6 200 210 APR 11... 1200 84200 180 7.8 13.1 9.0 23... 1230 78500 185 8.0 24.1 14.2 5.0 10.8 MAY 08... 1200 70100 220 8.4 25.2 18.5 10.2 --22... 1100 57200 240 7.8 20.5 21.2 3.0 K3 56

JUN 06.e. 1500 79600 180 8.1 23.3 20.3 26... 1030 46300 240 7.7 22.0 24.0 4.0 K4 K19 JUL 10... 1130 39600 310 7.9 25.0 24.0 5.3 --24... 1200 57200 300 7.7 28.2 28.0 3.0 5.2 K4 K8 AUG 08... 1200 34300 335 7.6 31.0 29.0 6.1 --17... 1230 53000 315 7.9 24.5 24.0 4.0 K4 K12

SEP 04.e. 1100 29800 278 8.1 26.5 27.5 89 7.8 K16

SUPPLEMENTAL DATA A:AWATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980

Susquehanna River at Conowingo, Maryland (01578310)--Continued

SPE-A COLI- STREPCIFICA FORM, TOCOCCI

STREAM- CON- FECAL, FECAL,

FLOW, DUCT- TEMPER- TUR- OXYGEN, 0.7 KFAAGAR

IW,TAN- ANCE PH ATURE, TE0PER BID- DIS... UM-MF (COLS.

TIME TANEOUS (MICRO- AIR ATURE ITV SOLVE() (COLS./ PER

DATt (CFS) MHOS) (UNITS) (DEb C) (DEGAA(NTU) 100 ML) 100AAC) (MG/L) ML)

(00061) (00095) (00400) (00020) (00010) (00076) (00300) (31625) (31673)

OCTA• 1979

03". 1230 73700 245 8.2 20.0 21.0 8.2 12..6 1230 79600 188 8.0 17.0 14.0 1042 lb... 1030 72800 195 7.9 13.0 13.0 8.0 10.0 230 63 31... 1130 65800 -- 14.0 ... 8.9 --31... 1200 66000 252 8.2 14.0 14.5 4.0 --

NOV 03... 0700 908 240 8.2 9.5 14.0 9.9 03... 0792 916 -- -- 9.5 -- 10.2 --13... 1200 71400 200 7.1 8.5 10.0 1.0 10.7 K84 240 29... 1245 182000 185 8.1 5.0 13.5 11.3 --3U... 1130 151000 150 -- 8.0 10.0 12.3 30... 1230 133000 142 A.0 9.0 12.3

OEC 01... 1100 100000 160 8.0 4.0 8.0 --01... 1200 104000 150 7.8 4.0 8.0 12.2 --11... 1145 66400 190 7.7 9.0 4.5 2.0 12.7 20 K4

JANA. 1980 03... 1100 74000 157 7.4 6.0 4.0 12.8 --15... 1030 60100 209 8.1 8.5 1.5 .80 13.6 90 360 29... 1100 79800 235 7.2 1.0 3.0 12.8 --FEb 12... 1130 59200 185 7.2 1.1 1.5 1.5 14.3 K1 K5 15... 0550 23000 278 7.7 2.0 2.9 13.9 --

0920 60500 278 7.9 2.0 2.6 14.1 15... 1750 45600 288 8.0 2.0 2.8 14.5 15... 1855 24200 285 7.8 3.0 2.8 14.5

1030 59500 320 7.0 2.0 3.5 13.9 MAP 10... 1000 48000 175 8.0 9.0 5.5 4.0 13.8

AAAAA

SUPPLEMENTAL DATA A:2WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980


HARD-AMAGNE-ASODIUMA CHLOPOTAS-

CALCIUMA SLUM,AASULFATE RIDE,

,E.SS DIS-AADIS-AA DIS-ADIS- DISHARD- NESS,ASLUM, SODIUM,AAAD- ALKA-A

NONCAR- DIS- SORP-ALINITYA

(MG/L 80NATE SOLVED TION (MG/LASOLVEDSOLVEDAASOLVEDAASOLVEDAASOLVED

AS (MG/L (MG/LAA(MG/LAARATIO (MG/LAA(MG/LASA

DATE CAC03) CAC03) AS CA)AA AS K)AAS 504) ASA

(MG/L SODIUMA (MG/L

AS MG) AS NA) PERCENTAAACAC03)ACL)

(00500) (00902) (00915)A (00931) (00935) (00410) (00945) (00940)(00925) (00930) (00932)

, 1978NOVA

09... 120 33 10 10 15 .4 2.2 55 63 14 28... 120 31 9.5 11 17 .4 2.3 50 62 16 2Hose 120 31 9.4 11 17 .4 2.3 50 61 16

DEC 21... 68 37 19 5.1 6.? lb .3 lob 31 34 9.5 21... 68 37 19 5.0 6.3 16 .3 1.7 31 33 9.9

JANA, 1979 10... 58 35 lb 4.4 5.3 16 .3 1.6 23 24 8.6 10... 61 38 17 4.6 5.4 lb .3 1.5 23 25 8.8 25... 59 34 16 4.6 8.5 23 .5 2.2 25 27 14 25... 58 32 16 4.3 8.6 24 .5 2.4 26 26 14 29... 44 24 12 3.5 6.0 22 .4 1.5 20 24 8.6 29... 47 28 13 3.5 5.1 19 .3 1.6 19 22 8.7

FEH 16... 92 52 25 7.2 7.6 15 .3 1.5 40 44 12' lo... 88 49 24 6.9 7.3 15 .3 1.5 39 43 11 28... MAR

43 21 12 3.1 5.1 2(' .3 2.3 22 18 8.1

07... 35 18 10 2.5 3.7 18 .3 1.2 17 18 6.0 08... 33 21 9.3 2.4 2.9 15 .2 1.4 12 18 5.1 09... 36 18 10 2.7 3.2 16 .2 1.3 18 20 5.1 12... 47 26 13 3.6 3.6 14 .2 1.3 21 24 A.0 13... 50 50 14 3.7 3.3 12 .2 1.3 -- 34 3.4 28... 66 36 18 5.0 4.9 14 .3 1.4 30 32 7.4 APR 11... 23... 64 29 18 4.6 4.5 13 .2 1.3 35 30 7.5

MAY 08... 22... 90 49 24 7.3 7.1 14 .3 1.5 41 43 9.4

JUN 06... 26." 100 59 28 7.9 7.3 13 .3 1.6 43 48 12

JUL 10... 24... 120 65 33 10 9.8 20 .4 2.1 59 62 14 AUG 08... 17... 120 68 32 9.R 11 22 .4 2.3 52 65 14

SEP 04... 110 62 29 8.9 9.4 15 .4 2.1 47 55 12 OH... 110 59 26 9.0 9.5 16 .4 2.4 48 54 13 19... -- -- --19... 19... - -19... 19... 19...

16

2

SUPPLEMENTAL DATA A: WATER-QUALITY DATA, NOVEMBER 1978 THROUGH APRIL 1980


HARD- 9AGNE- SODIUM POTAS- CHLOHARD- NESS. CALCIUM SIUM, SODIUM. AD- SIUM, ALKA- SULFATE RIDE, NESS NONCAR- DIS- DIS- DIS- SORP- DIS- LINITY DIS- DIS(MG/L HONATE SOLVED SOLVED SOLVED HON SOLVED (MG/L SOLVED SOLVED AS (MG/L (MG/L (MG/L (MG/L SODIUM RATIO (MG/L AS (MG/L (MG/L

HATE2CAC03) CACO3) AS2CA) AS MG) AS NA) PERCENT AS2K) CAC03) AS 504) AS CL) (U0900) (00902) (00915) (00925) (00930) (00932) (00931) (00935) (00410) (00945) (00940)

OCT2,A1979 0 3... 12... .” .” .... 16... 73 41 29 5.6 4.7 16 .2 1.8 32 34 7.5 31... 96 51 25 8.1 8.2 22 .4 2.0 45 45 10 NOV 0.3... .... 13... 76 43 21 5.7 6.2 2U .3 1.6 33 33 9.0 29... -- -- -- - --30... 30...

DEC 01... 53 15 3.8 3.8 13 .2 1.8 26 28 6.2 01... 56 28 lb 4.0 4.1 17 .2 1.7 28 29 6.3 11... 72 38 20 5.4 5.0 17 .3 1.3 34 33 7.2

JAN ,AA1980 03... 61 27 17 4.6 4.6 18 ..3 1.5 34 29 6.8 15... HO 42 22 6.3 5.7 18 .3 1.6 38 39 8.4 29... 90 46 25 6.8 7.6 15 .3 1.4 42 42 11 FE8 12... 96 51 26 7.5 8.3 16 .4 1.5 45 43 12 15... 100 56 28 8.2 9.8 17 .4 1.6 48 51 13 15... 100 54 28 8.1 9.3 16 .4 1.5 49 50 13 15... 110 57 30 8.4 10 16 .4 1.6 53 52 14 15... 110 55 29 8.2 9.7 16 .4 1.6 51 50 13 27... 120 61 32 9.6 10 15 .4 1.6 58 56 14

MAR 10... 110 62 30 9.0 10 16 .4 1.6 5U 54 16 20... 76 48 21 5".7 9.2 20 .5 2.1 28 36 14 21... 13 45 20 5.7 8.4 19 .4 2.1 28 34 12 22... 56 31 16 3.9 6.9 20 .4 1.9 25 24 11 22... 54 30 15 3.9 6.5 20 .4 1.9 24 23 10 23... 46 26 13 3.4 5.0 18 .3 1.8 20 20 8.8 23... 46 27 13 3.4 4.7 17 .3 1.8 19 19 8.2 23... 51 21 14 3.9 4.5 16 .3 1.7 30 20 8.0 23.4. 46 27 13 3.3 4.4 17 .3 1.7 19 20 7.8 24... 39 17 11 2.9 4.3 18 .3 1.6 22 17 6.2 APR 02... 50 32 14 3.6 4.3 15 .3 1.4 18 23 6.8 0?... 50 30 14 3.6 4.4 lb .3 1.4 20 23 6.8 02... 50 30 14 3.6 4.2 15 .3 1.4 20 23 6.6 02ess 49 29 14 3.5 4.2 15 .3 1.4 20 24 6.5

17

2



SOLIDS, SOLIDS,2 NITRO- NITRO-

FLUO-2 SOLIDS, SOLIDS. SOLIDS, GEN, GEN,AASILICA, RESIDUE SUM OF2 NITRO-22NITHO

iADE,A DIS- RESIDUE GEN,AAGEN,DIS•.AAT 180ACONSTI- DIS-AAANITRATE NITRATEA

DISADEG. C TUENTS,ASOLVED AT 105 NITRATEAADIS- NITRITESOLVEDASOLVEDA DIS-AA

SOLVEDADIS- (TONSAAASOLVED TOTAL(MG/L DISAA(TONS DEG. C, TOTALAASOLVEDAA

(MG/L AS SOLVED SOLVED PER PER TOTAL (MG/L (MG/L (MG/L (MG/L

DATE AS F)AA(MG/L)A AS N)AAAS NO3)AA(MG/L) AS N) AS N)

(00950) (00955) (70300) (70301) (70303) (70302) (00500) (00620) (00618) (71851) (00615)

SI02) (MG/L)AAAC-FT) DAY)AA

NOV ,AA1978

09... .1 .1 .77 3.4 --

28... .1 .6 .79 .02

28... .1 .5 .77 .02

DEC

21... .1 4.7 104 .14 20000 1.1 .01

21... .1 4.7 103 .14 19600 1.1 .01

JANA1979

10... .0 4.8 84 .11 23100 1.2 .01 10... .0 4.8 87 .12 28200 1.2 .01 25... .1 4.3 98 .13 75400 1.2 .01 25... .1 4.2 98 .13 96600 .99 .01 29..6 .1 4.2 76 .10 35300 .94 .01 29... .1 4.3 74 .10 31600 .95 .01

FE8 16... .1 6.0 135 .18 17900 1.6 .01 16... .1 5.9 130 .18 17000 1.5 .01 28... .1 3.2 69 .09 33300 .89 .02 MAN 07... .0 3.8 59 .08 71400 .66 .02 088.• .0 4.0 53 .07 56700 --09... .1 4.2 61 .08 50200 12... .1 4.5 73 .10 33700 13... .0 4.5 64 .09 27500 .95 .01 28... .0 5.1 99 93 .13 40600 126 APR 11... 114 1.2 .99 4.4 .01 23... .1 3.9 98 91 .13 20800 110 MAY 08... -- 145 .56 .56 2.5 .02 22... .1 .5 147 118 .20 22700 162 -- ” --

JUN 06... 127 .95 .97 4.3 .02 26e.. .1 1.9 183 133 .25 22900 185 JUL 10... 216 .58 .60 2.7 .11 24... .2 2.0 213 172 .29 32900 221 AUG 08... 250 .91 4.0 --17... .1 3.6 205 173 .28 29300 238 .74 .70 3.1 .05

SEP 04... .1 2.5 181 147 .25 14600 -- -- .•'. '' --08... .1 2.1 149 .20 23000 198 .67 .49 2.2 .07 19... .... -- -- 171 .95 .04 19... 166 .96 1.1 4.7 .04 19... 159 .96 .97 4.3 .04 19... 165 .96 1.1 4.7 .04 19.e. 160 .96 .98 4.3 .04 19... 170 .96 .94 4.2 .04

18

A



SOLIDS, SOLIDS,A NITRO- NITRO

FLOO-ASILICA, RESIDUE SUM OFASOLIDS, SOLIDS, SOLIDS, NITRO-AAGEN,AAGEN, NITRO

kIDE,ADIS-ACONSTI- DIS-AARESIDUE NITRATE NITRATEAAT 190A()IS...AGEN,AAGEN,

DISADEG. C TUENTS, SOLYEO AT 105 NITRATEAADIS- DIS-AASOLVEDASOLVEDAA NITRITE

SOLVEDADIS (TONSATOTALAATOTAL(MG/L DIS-AA(TONSAADEG. C, SOLVED SOLVEDAA

(MG/L AS SOLVED SOLVED PER PER TOTAL (MG/L (MG/L (MG/L (MG/L

DATE SIO?) (MG/L) (MG/L) AS N) AS NO3)AAAS F)AA(MG/L)AAAC-FT) DAY)AAAAS N)AAAS N)

(00950) (00955) (70300) (70301) (70303) (70302) (00500) (00620) (00618) (71851) (00615)

1974OCT ,AA

03... 159 1.8 1.8 7.9 .06 12... -- 141 1.3 1.3 5.7 .03 16... .1 5.9 4.. 106 .08 20800 1.4 1.4 6.2 .02 31... .1 3.3 147 135 .20 26200 1.4 1.4 6.0 .03

NOV CA... -- -- 157 1.4 1.3 5.6 .04 13... .1 4.9 119 108 .16 22900 1.1 .01 29... ... 146 1.2 1.1 4.8 .02 30... 138 -- --30... 138 .97 .99 4.4 .02

DEC 01... 01...

.1

.1 4.4 4.1 87 .12

..'. 24400

127 151

.97

.98 .89 .99

3.9 4.4

.13

.02 11... .1 5.4 122 104 .17 21900 1.2 1.2 5.3 .01

JAN 1980 U3...

, .1 AA

5.0 94 .13 16800 121 1.1 1.1 4.8 .00 15... .1 4.6 111 116 .15 18000 1.2 1.3 5.7 .01 29... .1 3.8 124 .17 20000 148 1.4 .02

FELi 12... .2 3.3 145 136 .20 23200 '.. 1.7 1.6 7.0 .03 15... .1 2.7 151 .21 9380 169 1.6 1.6 7.0 .02 15... .1 2.8 149 .20 24300 167 1.6 1.5 6.6 .02 15.... .1 2.5 158 .21 1950U 170 1.7 1.6 7.0 .02 15... .1 2.6 15? .21 9930 165 1.7 1.6 7.0 .02 27... .1 1.4 167 .23 26800 188 1.7 1.5 6.6 .02

MAR 10... .1 .8 177 159 .24 22900 1.5 1.5 6.5 .02 20... .1 3.1 .'''. 114 .16 26200 125 1.3 1.3 5.7 .02 21... .1 2.7 109 .15 30600 144 1.4 1.5 6.6 .03 22... .1 3.6 89 .12 45900 102 1.4 1.3 5.7 .02 22... .1 3.7 85 .12 40200 105 1.4 1.3 5.7 .02 23••• .1 4.0 74 .10 44400 107 1.6 1.3 5.6 .04 23... .1 4.1 -- 72 .10 43200 96 1.5 1.4 6.1 .03 23... .1 4.2 93 81 .13 51000 1.5 1.5 6.5 .04 23... .1 4.1 66 72 .09 39700 1.5 1.3 5.7 .03 ?4... .1 4.2 81 67 .11 48600 1.2 1.4 6.1 .01 APR 02... .1 4.9 99 74 .13 1.1 1.1 4.8 .01 02... .1 4.8 87 75 .12 48600 1.1 1.1 4.8 .01 02... .1 4.9 89 75 .12 50000 1.2 1.2 5.2 .01 02... .1 4.7 64 76 .09 38700 1.1 1.1 4.8 .01

19



NITRO- NITRO- ANITRO- ANITRO ANITRO- ANITRO- NITRO 6EN, AGEN, ANITRO... AGEN, ANITRO- AGEN, ANITRO- AGEN, ANITRO- AGEN, AGEN,AM

A

NITRITE NITRITE AGEN, ANO2+NO3 AGEN, AAMMONIA AGEN, AAMMONIA AGEN, AORGANIC MONIA + OIS DIS- NO2+NO3 OIS. AMMONIA DIST AMMONIA DIS- ORGANIC DIS- ORGANIC SOLVED SOLVED TOTAL SOLVED TOTAL SOLVED TOTAL SOLVED TOTAL SOLVED TOTAL (MG/L 2(MG/L 2(MG/L 2(MG/L 2(MG/L 2(MG/l. 2(MG/L 2(MG/L 2(MG/L 2(MG/L 2(MG/L

DATE 2AS N) 2AS NO2) 2AS N) 2AS N) AAS N) AAS N) AAS NH4) AS NH4) AAS N) AAS N) AAS N) (U0613) (71856) (00630) (00631) (00610) (00608) (71845) (71846) (00605) (00607) (00625)

NOV 2, 21978 09... .0? .07 -- .79 -- .08 .10 .33 -- 29... .81 .81 .22 -- .27 .20 -- .42 28... .79 .79 .24 .24 ... .31 .19 .43

DEC 21... 1.1 1.1 .12 .15 .11 .23 21o. • 1.1 1.1 .12 .15 .07 .19

JAN A, A1979 10... 1.2 1.2 .08 .10 .29 .37 10... 1.2 1.2 .09 .11 .27 .36 25... 1.2 1.3 .24 .28 .48 .72 25... 1.0 1.2 .31 .40 1.2 1.5 29.0 • .95 .85 .11 .13 .33 .44 29.. • .96 .84 .08 .10 .38 .46

FE8 16... 1.6 1.6 .21 .25 .19 .40 16... 1.5 1.5 .20 .24 .21 .41 '8... .91 .88 .30 .39 1.0 1.3 MAPq 07... .68 .70 .23 .28 .87 1.1 08... .70 - -- 09... .72 12... -- .91 -- 13... .96 ..... .06 .08 .42 .48 28.. • .92 .07 .09 .18 .23 APR 11... .01 .03 1.2 1.0 .07 .07 .09 .09 .23 .22 .30 23... .87 .02 .02 .06 -- .08

MAY 08... .02 .07 .58 .58 .02 .03 .02 .04 .36 .14 .38 22... .61 .11 .13 .58 .69

JUN 06... .02 .07 .97 .99 .07 .07 .08 .09 .23 .13 .30 26... .56 .'.. .23 .28 .27 .50

JUL 10... .08 .26 .69 .68 .21 .23 .25 .30 .32 .30 .53 24... -- .91 .85 .05 .06 .06 .08 .71 .45 .76 AUG 08... .06 .20 .92 .97 .04 .05 .05 .06 .37 .06 .41 17... .79 .81 .14 .16 .17 .21 .43 .41 .57

SEP 04... -- -- .97 .00 .00 -- .38 .38 08... .04 .13 .74 .53 .11 .07 .13 .09 .44 .24 .55 19... .03 .10 .99 --on .05 .13 .06 .62 --.73 19... .03 .10 1.0 1.1 .12 .05 .15 .06 .47 .42 .59 19... .03 .10 1.0 1.0 .10 .04 .12 .05 .61 .20 .71 19... .03 .10 1.0 1.1 .11 .02 .13 .03 .40 .12 .51 19... .02 .07 1.0 1.0 .11 .02 .13 .03 .34 .32 .45 19... .02 .07 1.0 .96 .03 .04 .24 .83

20

NITRO.. GEN,

NITRITE DIS..

SOLVED (MG/L

DATE AAS AN)

SUPPLEMENTAL DATA A: AWATER-QUALITY DATA,

Susquehanna River at Conowingo,

A

NITRO ANITRO-

A

GEN, ANITRO-. AGEN, ANITRO... NITRITE AGEN, ANO2+1,103 AGEN,

A

U1S- ANO2+NO3 ADIS- AAMMONIA SOLVED ATOTAL ASOLVED ATOTAL

A

(MG/L A(MG/L A(MG/L A(MG/L AS ANO2) AAS AN) AAS AN) AAS AN)

NOVEMBER 1978 THROUGH APRIL 1980

Maryland (01578310)--ContinUed

'NITRO- ANITRO- NITRO- GEN, ANITRO... AGEN, ANITRO- GEN,

AMMONIA AGEN, AAMMONIA AGEN, AORGANIC DIS.. AAMMONIA ADIS- ORGANIC ADIS-

SOLVED ATOTAL ASOLVED ATOTAL ASOLVED (MG/L A(MG/L A(MG/L A(MG/L A(MG/L AS N) AAS ANH4) AAS ANH4) AAS N) AAS N)

NITRO-GEN,AM... MONIA A+ ORGANIC TOTAL (MG/L AS AN)

(00613) (71856) (00630) (00631) (00610) (00608) (71845) (71846) (00605) (00607) (00625)

OCT A1919 03... .0? .07 1.9 1.8 .10 .09 .12 612 .23 -- .33 12... .02 .07 1.3 1.3 .04 .01 .05 .01 .26 .33 .30

.01 .03 1.4 1.4 .04 .00 .05 .00 .66 .70

31... .05 .16 1.4 1.4 .14 .12 .17 .15 .49 .17 .63

NOV 03... .04 .13 1.4 1.3 .06 .01 .07 .01 .71 .24 .77 13... .01 .03 1.1 .08 .04 .10 .05 .16 -- .24 29... .01 .03 1.2 1.1 .04 .05 .05 .06 .54 .44 .58 30... -- 1.1 1.1 .15 -- .18 ''. .40 .55 30.04. .01 .03 .99 1.0 .08 .03 .10 .04 .54 .53 .62

DEC 01... .11 .35 1.1 1.0 .01 .01 .U1 .01 .43 .28 .44 01... .01 .03 1.0 1.0 .U3 .03 .04 .04 .51 .52 .54 11... .01 .03 1.2 1.2 .07 .02 .08 .03 .29 .37 .36

JAN A, A1980 03... .0? .07 1.1 1.1 .03 .00 .04 .00 .37 .50 .40 16... .01 .03 1.2 1.3 .10 .09 .12 .12 .55 .51 .65 29... 1.4 .07 .06 .08 .08 .20 .27

FEH 12... .02 .07 1.7 1.6 .07 .09 .08 .12 .22 .07 .29 15... .03 .10 1.6 1.6 .09 .10 .11 .13 .54 .41 .63 15... .02 .07 1.6 1.5 .09 .09 .11 .12 .26 .27 .34 15... .U2 .07 1.7 1.6 .08 .06 .10 .10 .54 .46 .62 15... .02 .07 1.7 1.6 .08 .07 .10 .09 .51 .26 .59 27... .02 .07 1.7 1.5 .17 .08 .21 .10 .22 .31 .39 MAR 10... .03 .10 1.5 1.5 .05 .09 .06 .12 .23 .52 .28 20... .U2 .07 1.3 1.3 .22 .22 .27 .28 .32 .32 .54 21... .02 .07 1.4 1.5 .19 .21 .23 .27 .61 .40 .80 22... .02 .07 1.4 1.3 .17 .12 .21 .15 .50 .48 .67 22... .02 .07 1.4 1.3 .17 .16 .21 .21 .58 .35 .75 23... .03 .10 1.6 1.3 .17 .13 .21 .17 .58 .24 .75 23... .02 .07 1.5 1.4 .14 .12 .17 .15 .44 .15 .58 23... .03 .10 1.5 1.5 .17 .16 .21 .21 .66 .34 .83 23... .02 .07 1.5 1.3 .13 .13 .16 .17 .74 .3S .87 24... .03 .10 1.? 1.4 .16 .03 .19 .04 .40 .29 .56 APR 02.1.64, .01 .03 1.1 1.1 .06 .04 .07 .05 .34 .15 .40 02... .00 .03 1.1 1.1 .06 .04 .07 .05 .16 .08 .22 02... .02 .07 1.2 1.2 .06 .01 .07 .01 .12 .29 .18 02... .U1 .03 1.1 1.1 .06 .05 .07 .06 .21 .19 .27

21



NITRO- NITRO- A PHOS- PHOS- GLN,NH4 GEN,AM- ANITRO- A PHOS- PHOS- PHORUS, PHATE, + ORG. MONIA + ANITRO- AGEN, ANITRO- ARHOS- APHOS- APHOHUS, PHORUS, AORTHO, AORTHO, SuSP. ORGANIC GEN. DIS- GEN. PHOHUS, PHORUS DIS- OHTHO. DIS- OIS-TOTAL DIS. TOTAL SOLVED TOTAL TOTAL TOTAL SOLVED TOTAL SOLVED SOLVED (MG/L A(MG/L A(MG/L A(MG/L A(MG/L A(MG/L A(MG/L A(MG/L A(MG/L A(MG/L A(MG/L

DATE AAS N) AAS N) AAS N) AAS N) AAS NO3) AAS P) AAS R04) AAS P) AAS P) AAS R) AAS PO4) (00624) (00623) (00600) (00602) (71887) (00665) (71886) (00666) (70507) (00671) (00660)

NOV A1978 09... .41 -- .U1 .00 .00 28... 1.2 5.4 .04 .12 .02 .01 .01 .03 28... 1.2 5.4 .04 .12 .01 .01 .00 .00

DEC 21... 1.3 5.9 .04 .12 .01 .01 .01 .03 21... 1.3 5.7 .04 .12 .01 .02 .02 .06 JAN A1979 10... 1.6 7.0 .06 .18 .02 .02 .01 .03 10... 1.6 6.9 .06 .18 .02 .02 .01 .03 25... 1.9 8.5 .31 .95 .06 .06 .04 .12 25... 2.5 11 .28 .86 .03 .03 .03 .09 29... 1.4 6.2 .07 .21 .11 .02 .10 .31 29... 1.4 6.3 .08 .24 .00 .02 .00 .00

FER 16.4,8 2.0 8.9 .03 .09 .02 .02 .01 .03 16... 1.9 8.5 .03 .09 .01 .02 .01 .03 28... 2.2 9.8 .29 .H9 .06 .06 .06 .1H MAR 07... 1.8 7.9 .35 1.1 .02 .03 .00 .00 08... 09... 12... 13... -- 1.4 6.4 .05 .15 .00 .01 .01 .03 28... .01 .22 1.2 5.1 .04 .12 .01 .00 .00 APR 11... .01 .29 1.5 1.3 6.6 .03 .09 .01 .00 .01 .03 23... .00 .10 .95 4.2 .03 .09 .01 .01 .03 MAY 08... .21 .17 .96 .75 4.3 .02 .06 .01 .01 .00 .00 22... .30 .39 1.3 -- 5.8 .04 .12 .00 .00 .00

JUN 06... .10 .20 1.3 1.2 5.6 .05 .15 .02 .01 .01 .03 26... .04 .46 1.1 4.7 .04 .12 .02 .01 .03

JUL 10... .00 .53 1.2 1.2 5.4 .03 .09 .00 .01 .02 .06 24... .25 .51 1.7 1.4 7.4 .03 .09 .01 .00 .00 .00 AUG 08... .30 .11 1.3 1.1 5.9 .05 .15 .01 .00 .00 .00 17... .00 .57 1.4 1.4 6.0 .06 .18 .02 .03 .00 .00

SEP 04... .16 .22 1.4 -- 6.0 .03 .09 .02 -- -- -- 08... .24 .31 1.3 .84 5.7 .09 .28 .04 .03 .05 .15 19... -- -- 1.7 -- 7.6 .06 .18 .03 .07 .00 .00 19... .12 .47 1.6 1.6 7.0 .06 .18 .02 .01 .00 .00 19... .47 .24 1.7 1.2 7.6 .05 .15 .02 .07 .00 .00 19... .37 .14 1.5 1.2 6.7 .05 .15 .01 .01 .00 .00 19... .11 .34 1.5 1.3 6.4 .06 .18 .02 .08 .00 .00 19... .56 .27 1.8 1.2 8.1 .06 .18 .02 -- .00 .00

22



NITRO- NITRO- 2 PHOS- GEN,NH4 GEN,AM- 2NITRO- 2 PHOS- PHOS- PHORUS, + oRG. MONIA + 2NITRO- 2GEN, 2NITRO- 2PHOS- 2PHOS- 2PHORUS, PHORUS, 2ORTHO, SUSP. ORGANIC GEN, DIS- GEN, PHORUS, PHORUS DIS- ORTHO. DIS-TOTAL DIS. TOTAL SOLVED TOTAL TOTAL TOTAL SOLVED TOTAL SOLVED (Mr3/L 2(MOIL 2(MG/L 2(MG/L 2(MOIL 2(MG/L 2(MG/L 2(MG/L 2(MG/L 2(MG/L

DATE 2AS N) 2AS N) 2AS N) 2AS N) 2AS NO3) 2AS P) 2AS PU4) 2AS P) 2AS P) 2AS P) (00624) (00623) (00600) (00602) (71867) (00665) (71886) (0066b) (70507) (00671)

oCT 2, 21979 03... .00 -- 2.2 2.5 9.9 .08 .25 .03 .04 .04 12... .00 .34 1.6 1.6 7.1 .07 .21 .03 .03 .03 16... .00 -- 2.1 9.3 .04 .12 .03 .02 .04 31... .34 .29 2.0 1.7 9.0 .01 .03 .04 .00 .01

NOV U.J... .52 o2.5 2.2 1.6 9.6 .05 .15 .04 .04 .00 13... .00 1.3 5.9 .03 .09 .02 .00 29... .09 .49 1.8 1.6 7.9 .09 .28 .01 .00 .00 30... -- 1.7 7.3 .07 .21 .02 .00 -- 30... oU6 .56 1.6 1.6 7.1 .07 .21 .01 .00 .03

DEC 01... .15 .29 1.5 1.3 6.8 .06 .18 .01 .00 .02 01... .00 .55 1.5 1.6 6.8 .08 .25 .01 .00 .02 11... .00 .i9 1.6 1.6 6.9 .04 .12 .02 .03

JAN 2, 21980 03... .00 .50 1.5 1.6 6.6 .03 .09 .06 .06 .05 15... .05 .60 1.9 1.9 H.2 .04 .12 .02 .03 .03 29... 1.7 7.4 .05 .15 .00 .01 .00 FE6 1?... .13 .16 2.0 1.8 6.8 .04 .12 .03 .02 .01 15... .12 .51 2.2 4.1 9.9 .08 .25 .03 .03 .00 15... .00 .36 1.9 1.9 8.6 .03 .15 .02 .05 .04 15... .08 .54 2.3 e.1 10 .05 .15 .02 .03 .03 15... .24 .35 2.3 2.0 10 .05 .15 .03 .03 .03 27... .00 .39 2.1 1.9 9.3 .05 .15 .03 .05 .05 MA. 10.o. .00 .61 1.8 2.1 7.9 .04 .12 .02 .00 .01 20..6 .00 .54 1.8 1.8 8.1 .08 .25 .04 .04 .00 21... .19 .61 2.2 2.1 9.7 .11 .34 .03 .05 .00 22... .07 .80 2.1 1.9 9.2 .12 .37 .02 .00 .02 22... .24 .51 2.2 1.8 9.5 .15 .46 .03 .01 .04 23... .38 .37 2.4 1.7 10 .20 .61 .03 .01 .00 23... .31 .27 2.1 1.7 9.2 .34 1.0 .02 .01 .00 23... .33 .50 2.3 2.0 10 .16 .55 .03 .08 .04 23... .39 .48 2.4 1.8 11 .32 .98 .02 .01 .00 24... .24 .32 1.8 1.7 7.8 .15 .46 .01 .06 .00 APk 0?... .21 .19 1.5 1.3 6.6 .07 .21 .01 .00 .00 02... .10 .12 1.3 1.2 5.9 .07 .21 .01 .00 .00 02... .00 .30 1.4 1.5 6.1 .07 .21 .01 .00 .00 02... .03 .24 1.4 1.3 6.1 .07 .21 .01 .00 .00

23



ALUM- ALUM- BARIUM, BERYL

INUM, INUM, ALUM- ARSENIC BARIUM, SUS- LIUM,

TOTAL SUS- INUM, SUS- ARSENIC TOTAL PENDED BARIUM, TOTAL

RECOV PENDED OIS- ARSENIC PENDED DIS- RECOV- RECOV- DIS- RECOV

ENABLE RECOV. SOLVED TOTAL TOTAL SOLVED ERABLE ENABLE SOLVED ERABLE

(UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L

DATE. ASAAS AL) ASAAS AS) ASAAS AS) AS BA) AS BA) AS BE)AL) AL) AS) AS BA)

(01105) (01107) (01106) (01002) (01001) (01000) (01007) (01006) (01005) (01012)

NOVA9 1978 09." 300 260 40 0 10 28... 130 130 0 26." 170 160 10

DEC

21... 220 180 40 1 0

21... 220 170 50 1 0

JANA, 1979

10... 420 380 40 1 0 10... 450 400 50 1 0 75." 9300 Q200 110 25... 10000 10000 30 --24... 1600 1A00 20 1 0 29... 1800 1800 30 1 0

FEB 16... 0 0 0 16... 0 0 10 --28... 0 0 0 3 0 MAR 07... 12000 12000 0 2 08... --09... 12... --13... 1100 1100 0 1 0 28... 1 0 1 0 0 0 APR 11... 230 180 50 23... 220 140 80 6 0

MAY 08... 160 10 150 22... 80 40 40 3 0

JUN 06... 130 90 40 28... 220 170 50 3 1 2 0 0 0

JUL 10... 170 130 40 24e.. 150 110 40 4 0 AUG 08... 400 360 40 17... 70 2 0

SFP 04... -- -- -- 2 1 1 100 100 0 08.e. 290 240 50 19... 700 600 100 19... 600 600 0 19... 800 800 0 19... 600 500 100 19.e. 800 700 100 19.o. 800 800 0

24



PHOS- ALUM-22 BARIUM,ALUM-2 PRATE, INUM, BARIUM,2INUM,22ALUM-22ARSENIC2SUS-

ORTHO. TOTAL SUS- INUM,2SUS- ARSENIC TOTAL PENDED BARIUM,

DIS- RECOV- PENDED DIS- ARSENIC PENDED DIS- RECOV- RECOV- DISSOLVED ERABLE RECOV. SOLVED TOTAL TOTAL SOLVED ENABLE ENABLE SOLVED

(MG/L (UG/L22(UG/L (Ub/L22(UG/L22(UG/L (UG/L222(UG/L(UG/L (UG/L

DATE2 AS AL) AS AS) AS BA)AS PO4) AS AL)22 AS AS) AS BA) AS BA)222AS AL)22AS AS)22

(00660) (01105) (01107) (01106) (0100?) (01001) (01000) (01007) (01006) (01005)

1979,AOCT2

03... .12 500 0 600 12... .09 500 100 400 16....12 300 0 300 31... .03 600 300 .300

NOV 03... .00 600 100 500 13... 600 0 600 29... .00 700 400 300 03 800 500 300 30... .09 800 600 200

01... .06 700 400 300 01... .06 800 600 200 --11... 500 300 200 0 0 0 0 0 30

JAN .221980 03... .15 600 400 200 15....09 200 100 100 29... .00 200 100 100

FEB 12... .03 300 200 100 15... .00 300 200 100 15... .12 200 0 200 15... .09 200 100 100 15... .09 200 100 100 274,.. .15 400 100 300 MAP 10... .03 300 100 200 0 0 0



CADMIUMACHRO- CHNO-AACOBALT.ACOPPER,

CADMIUM SUS-AMIUM, MIUM, CHRO- COBALT. SUS-ACOPPER, SUS-

lUTAL PENDED CADMIUM TOTALASUS- MIUM, TOTAL PENDED COBALT, TOTAL PENDED

NECOV- RECOV- DIS- RECOV- PENDED DIS- RECOV- RECUV- DIS- RECOV- RECOVERABLE ERABLE SOLVED ERABLE RECOV. SOLVED ERABLE ERABLE SOLVED ERABLE ERARLE

(UG/L2 (UG/L2(UG/L (UG/L (UG/L(UG/L2(UG/L2(UG/L2(UG/L2(UG/L22(UG/L22

DATE AS CD)AAAS CD)AAAS CR)AAAAS CO)AAAS CO)AAAS CD) AS CR) AS CR) AS CO) AS CO) AS CU)

(01027) (01026) (01025) (01034) (01031) (01030) (01037) (01036) (01035) (01042) (01041)

NOVA1976

09...

--



CHRO-2 COPPER,

C=DmIum SUS-2MIUM, MIUM, CHRO- COBALT, SUS-2COPPER, SUS-

TOTAL PENDED CADMIUM TOTAL2

CADMIUM2CHRO-2 COBALT,2

SUS- MIUM, TOTAL PENDED COHALT, TOTAL PENDED

HECOV- RECUV- DIS- RECOV- PENDED DIS- RECOV- RECOV- DIS- RECOV- RECOV-

ERAdLE ENABLE SOLVED ENABLE RECOV. SOLVED ENABLE ENABLE SOLVED ERABLE ENABLE

(uG/L2(UG/L22(UG/L2(UG/L (UG/L2(UG/L(UG/L (UG/L2(UG/L2(UG/L22(UG/L2

DATE2AS CD) AS CR) AS CR)222AS CO)22 AS CU)AS CO)2AS CD)22AS CR) AS CO) AS CO) AS CU)22

(01027) (01026) (01025) (01034) (01031) (01030) (01037) (01036) (01035) (01042) (01041)

197',

03...

12...

16... 4 3 31... 0 3

NOv

03...

14••• U 0

0C1 ,22

3

30...

3J.••

DEC

01...

01... --

11... 0 0 0 10 0



IRON,A LEAD,AMANGA- MANGA-

IRON, SUS-AA SUS-ANESE, NESE, MANGA- MERCURYLEAD,A

COPPER, TOTAL PENDED IRON, TOTAL PENDED LEAD, TOTAL SUS- NESE, TOTAL

UIS- RECOV- RECuV- DIS- RECOV- RECOV- DIS- RECOV- PENDED DIS- RECOVSOLVED ENABLE ENABLE SOLVED ENABLE ENABLE SOLVED ENABLE RECOV. SOLVED ENABLE

(UG/LA(UG/L (UG/LAA(UG/L (UG/L (UG/LAA(UG/L (UG/L(UG/L (UG/LAAA (UG/LAA

DATE AS CU)AAAS FE) AS PB)AAAAS MN)AAAS MN)AAAS FE) AS FE)AAAS PB) AS PB) AS MN) AS HG)

(01040) (01045) (01044) (01046) (01051) (01050) (01049) (01055) (01054) (01056) (71900)

NOVA. 1976

09... 280 260 0 5 50 50 0



WON,2 LEAD.2MANGA— MANGA—

IRON.2 SUS—2NESE, NESE, MANGA— MERCURYSUS—2LEAD,2

COPPER. TOTAL PENDED IRON, TOTAL PENDED LEAD. TOTAL SUS— NESE, TOTAL

()IS— RECOV— RECOV— DOS— RECOV— RECOV— DIS— NECOV— PENDED DIS— RECOV— SOLVED ERABLE ERAHLE SOLVED ENABLE ENABLE SOLVED ENABLE RECOV. SOLVED ERABLE

(UG/L2(UG/L2 (UG/L (UG/L2(UG/L(UG/L2(UG/L2(UG/L2(UG/L2(UG/L22(UG/L2

DATE2AS FE) AS FE)22 AS P8)222AS MN)22 AS HU)AS CU)2 AS FE) AS P8) AS PH) AS MN) AS MN)22

(01040) (01045) (01044) (01046) (01051) (01050) (01049) (01055) (01054) (01056) (71900)....,

1979OCT ,22

03... 950 920 3n 120 120 0 12... 940 890 50 110 70 40 --16... 790 720 70 5 130 40 90 .1 31... 540 510 30 7 110 100 10 .1

NOV 03.e. 520 500 20 -- 90 90 0 13... 730 620 110 18n0 140 50 90

A2



MERCURYA SELE-ASILVER,AZINC,

SUS-2NICKEL,2NIUM, SELE- SILVER, SUS-2ZINC, SUS-

PENDED MERCURY TOTAL SELE-2 TOTAL PENDEDSUS- NIUM, TOTAL PENDED SILVER,

RECUV- DIS- RECOV- NIUM, PENDED DIS- RECOV- RECOV- DIS- RECOV- RECOVERABLE SOLVED ERABLE TOTAL TOTAL SOLVED ERABLE ERABLE SOLVED ERARLE ENABLE

(UG/LA(UG/LAA(UG/L (UG/L (UG/L (UG/L(UG/L (UG/L (UG/LAAA(UG/LAA(UG/LAA

DATE AS HG) AS SE) AS SE) AS SE)AAAAS AG)AAAS ZN)AAAS HG)AAAS NI)AA AS AG) AS AG) AS ZN)

(71695) (71890) (01067) (01147) (01146) (01145) (01077) (01076) (01075) (01092) (01091)

1978 09... 13 0 40 28... ?4...

DEC

21... 19 0 20 21... 10 0 30

JAN2

NOVA

1979,A

10... 1? 0 50 10... 11 0 30 25... 25... 29... lb 0 20 29... 18 n 30

FEN 15... 16... 28... 2n 0 70

MAR 07... 27 1 110 13... 16 0 0 --28... .0 -- 0 0 0 0 0 0 30 10 APR 11... 23... 15 0 20 mAY 08... 22... 18 0 30

JUN 05e.. 26... .0

A



AERCURYA SELE- Z

SUS-.ANICKEL,A SUS...ANIOM, SELE-SILVER, SILVER, SUS-

PENDED MERCURY TOTAL SELE.. SUSAANIUM, TOTAL PENDED SILVER, 1,7c.1 ,_ PENDED

HECOV- DIS RECOV-NIUmg PENDEDADIS RECOV- RECOV DIS RECOV- RECOV

tRABLE SOLVED ERABLE TOTAL TOTAL SOLVED ERABLE ERABLE SOLVED ERABLE ERABLE

)UG/L2(UG/L (UG/L (UG/LAA(UGILA(UG/LAA(UG/L (UG/LA(UG/L(UG/L AA (UG/L

DATE2 AS NI)AAS SE) AS AG) AS AG)'IS NG)2 AS ZN)AS MG)AAS SE) AS SE)AAAAS AG)AAAS ZN)AA

(71895) (71890) (01067) (01147) (01146) (01145) (01077) (01076) (01075) (01091)(01092)A

OCT2,

03...

12... --

16... ? 20

31... 3 20

NOV

03• • •

13... 6 0 90

29...

30.6.

30...

DEC

01...

01...



SED. SUSP.

ZINC,_SIEVE_SEDI DIAM._MENT,

SOLVED % FINER_SUS (UG/L_1HAN_PENDED

DATE_AS ZN)_.062 MM_(MG/L)(01090) (70331) (80154)

FUN_1979

28... 197

MAN

07... 454

13... 35

24... 20 --

APR

--11... 31

23... 100 10

MAY

--08... 16

22... 100 4

JUN

-- --06... 12

26... 10 100

JUL

10... -- 7

24.e. 17

AUG

OH... 97 17

17... 100 4

SEN

04... 0 100 9

OCI

03..• 22

12... -- 23

16. .. 90 14

NOV

13... 92 13

--30... 34

30... 57

DEC

01... 29

01... 60

11... 30 92 10

JAN_1986

03... 15

15... 83 6

29... 6

FEH

27... HI 6

MAR

48 610... 20... 99 16

23... 100 13?

23... 100 13(

APR

02... 100 40

32

SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980

Potomac River at Chain Bridge at Washington, D.C. (01646580)

STREP-

CIFIC2 FORM,2

SPE-2 COLI-2

TOCOCCI

STREAM- CON-2 FECAL, FECAL, HARD-

FLOW,2DUCT-2TEMPER-2OXYGEN,2KF AGAP2TOP-20.72NESS

INSTAN- ANCE2PH2 DIS- UM-MF (COLS. (MG/LATURE, TEMPER- HID-2

TIME TANEUUS (RICRU-2AIR2ITY22 4SATONE SOLVED (COLS./ PER22

DATE (CFS) (UNITS) (DEG C) (NTU) (MG/L) 100 ML) CAC03)MHOS)22(DEG C)22222100 ML)22

(00061) (00045) (00020) (00010) (00076)2(31625) (31673) (00900)(00400) (00300)

197d

0?...A1790

OCT ,22

1341

04...A1840 --...

10...A1020 194U 450 8.6 14.5 10.8 K13 270

1423 -

14.0 2.0A 180

NOV

14...A1015 1790 450 8.5 12.5 11.1 80 20018.5 7.0A 240

DEC

19".A1000 5780 290 8.2 5.5 3.5 13.7 240 1205.0A60

JAN ,AA197

16...A11700 7.7 4.5 1.0 4.0A40 921115 275 14.1 400

FEF3

274.e.A1900 197000 135 8.0 3.5 3.0 90A14.2 1700 7000 43

MAR

01...A1230 73800 56

19...A16500 H.2 8.0 1001230 265

27.e.A49800 200 8.0 9.0 b5 1500 3800 781000 10.5

APR

26...A10100 8.7 18.0 9.6 K9 360 1101300 245 16.0 4.0A

MAY

23...A1045 9970 195 8.4 21.5 22.0 9.6 270 1006.0A48

JUN

05...A1030 34200 230 8.1 21.0

130.4,A1030 21200 260 8.1 23.0 21.0 25A9.8 170 140 110

JUL

28.8 7.0A 120

AUG

15...A1030 4940 310 8.5 20.0 24.5 15A9.5 120 1100 120

SEP

06...A1030 62000 180 7.8 26.5 24.5 15026.5 K11000 E84000 69

06...A62300 9.3 24.7 '''' 6a

17.e.A1030 4440 325 0.5 29.0 8.5 60 530

1330 177

06...A58700 24.6 602000 160

0745 165

07...A

07.6.A70600 23.7 64

1100 84200 205 24.1 76

07...A95300 -- 831430 220

1830 230

08...A80900 --

07.64.A104000 89

1030 168

09...A1415 36200 178 72

UCT

11...A68800 8.1 11.4 --1130 172

17...A1100 28400 215 7.4 11.9 8.4 270 12017.0 3.0A 93

NOV

325 1.0A 110

DEC

12...A9140 8.1 7.1 ,.7 K7 K4 120

27...A1100 11900 8.2 11.0 14.0 11.8 280 270

1030 280 2.4 1.0A

JAN ,AA1980

14...A10200 8.1 2.5 .51A33 280 1201030 285 2.3 12.6

FF8

11...A7310 8.0 5.0 2.0 14.1

SUPPLEMENTAL DATA B: WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980

Potomac River at Chain Bridge at Washington, D.C. (01646580)--Continued

HARD- MAGNE- SODIUM POTAS- CHLO- FLUO-NESS,

NONCAR-CALCIUM DIS....

SIUM, DIS-

SODIUM, DIS-

AU-SORP-

SIUM, DIS-

ALKA LINITY

SULFATE DIS-

RIDE, DIS-

RIDE, DIS

80NATE (MOIL

DATEACAC03) (00902)

SOLVED (MG/L AS CA)

(00915)

SOLVED (MG/L ASAAMG)

(00925)

SOLVED (MG/L ASANA)

(00930)

SODIUM PERCENT (00932)

TION RATIO

(00931)

SOLVED (MG/L AS K)

(00935)

(MG/L AS

CAC03) (00410)

SOLVED (MG/L AS 504) (00945)

SOLVED (MG/LAS CL)

(00940)

SOLVED (MG/LASAF)

(00950)

OCT ,AA1976 02... 04... .... ... --10... 58 50 13 22 21 .7 2.7 120 66 70 .1

NOV 14... 58 58 13 26 22 .8 3.0 140 74 25 .2

DEC 19.4.4. 47 34 7.6 9.3 15 .4 2.2 69 40 9.0 .1

JAN ,AA1979 16.e. 32 27 5.9 8.0 16 .4 1.8 60 27 13 .1

FEB 27... 14 13 2.5 3.0 13 .2 2.1 29 16 4.5 .1 MAR 01... 26 17 3.4 3.6 12 .2 1.9 30 18 5.4 .1 19... 36 30 6.8 7.0 13 .3 1.6 67 30 7.8 .1 27... APR

33 23 4.9 5.2 12 ..3 1.7 45 ?5 7.2 .r)

26... 35 33 7.0 8.2 14 .3 1.5 76 34 9.4 .1 MAY 230.4, 31 30 8.2 9.6 15 .4 1.8 69 30 7.5 .1

JUN 05... -- -- -- -- -- --13... 29 33 6.6 7.4 12 .3 2.8 81 29 7.0 .1

JUL 170.4. 37 34 9.6 15 20 .6 2.4 87 49 15 .1

AUG 15... 38 34 8.1 13 19 .5 3.0 80 43 15 .1

SEM 06... 6 21 3.9 S.9 15 .3 3.3 63 15 6.3 .1 06... 6 21 3.8 5.4 14 .3 3.3 62 15 6.4 .1 06... 9 18 3.6 4.7 14 .3 4.3 51 11 6.1 .1 07... 18 19 3.9 5.5 15 .3 4.0 46 16 6.0 .1 07... 16 23 4.6 7.5 17 .4 3.7 60 20 6.9 .1 07... 14 25 5.1 7.1 15 .3 3.5 69 20 7.7 .1 07... 14 27 5.2 8.1 16 .4 3.3 75 23 8.3 .1 OH... -- -- -- -- -- -- -- -- --09... 23 22 4.1 4.0 10 .2 2.6 49 19 4.6 .1

OCT 11... 17... 25 28 5.5 4.5 12 .2 1.7 68 21 5.4 .1

NOV 27... 23 32 6.9 8.4 18 .4 1.7 85 30 9.3 .1 DEC 12... 33 35 7.4 7.8 16 .3 1.6 85 29 9.1 .7

JAN •AA1980 14... 34 36 7.5 9.6 19 .4 1.7 87 32 11 .1

FEH 11... 33 40 8.1 11 15 .4 1.5 100 31 12 .2

MAR 11... 35 31 7.4 8.9 15 .4 1.2 73 34 10 .1 18... 31 26 5.8 9.9 19 .5 1.6 58 27 14 .1 18... 30 25 5.8 9.6 19 .5 1.7 56 27 13 -.1 18... 28 25 5.7 9.3 19 .4 1.6 58 26 19 .1 19... -- -- -- -- -- -- -- -- .... --19... -- -- -- -- -- -- -- -- ..... --22... 19 15 3.4 4.4 15 .3 2.4 32 17 8.1 .1 22..., 25 17 4.0 4.4 13 .3 2.3 34 17 7.6 .1 22... 24 17 4.1 4.3 13 .2 2.3 35 17 7.3 .1 23..., 26 19 4.3 4.9 14 .3 1.8 39 20 7.1 .1 234.e. 23 20 4.3 5.0 13 .3 1.8 45 20 7.1 .1 24... 27 19 4.3 5.0 14 .3 1.6 38 19 6.2 .1 APR 02.4,0 31 22 4.9 5.4 13 .3 1.7 44 24 7.0 .1 02... 31 22 4.8 5.5 13 .3 1.8 44 23 6.7 .1

34

2

SUPPLEMENTAL DATA B:2WATER-QUALITY DATA, OCTOBER 1978 THROUGH APRIL 1980

(01646580)--ContinuedPotomac River at Chain Bridge at Washington, D.C.2

SOLIDS, SOLIDS,22 NITRO-NITRO-2NITRO-

SILICA, RESIDUE SUM OF22SOLI

WATER-QUALITY MONITORING OF THREE MAJOR …WATER-QUALITY MONITORING OF THREE MAJOR TRIBUTARIES TO...

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